Logarithm Table for base 1991
This page shows the logarithm table for base 1991, in blocks of 100 values — each block covers one whole number N (its row lists N.0 through N.9, and each row's 10 columns walk the hundredths digit 0 through 9). Hover any cell to trace it back to its row and column, or print a block directly from its own header.
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Logarithm Table for base 1991 — N = 1.00–1.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.0 | 0.000000 | 0.001310 | 0.002607 | 0.003891 | 0.005163 | 0.006423 | 0.007671 | 0.008907 | 0.010131 | 0.011345 |
| 1.1 | 0.012547 | 0.013738 | 0.014919 | 0.016089 | 0.017249 | 0.018398 | 0.019538 | 0.020668 | 0.021789 | 0.022899 |
| 1.2 | 0.024001 | 0.025094 | 0.026177 | 0.027252 | 0.028318 | 0.029375 | 0.030424 | 0.031465 | 0.032497 | 0.033521 |
| 1.3 | 0.034538 | 0.035547 | 0.036548 | 0.037541 | 0.038527 | 0.039506 | 0.040478 | 0.041442 | 0.042400 | 0.043350 |
| 1.4 | 0.044294 | 0.045231 | 0.046161 | 0.047085 | 0.048002 | 0.048913 | 0.049818 | 0.050716 | 0.051609 | 0.052495 |
| 1.5 | 0.053376 | 0.054251 | 0.055120 | 0.055983 | 0.056840 | 0.057693 | 0.058539 | 0.059380 | 0.060216 | 0.061047 |
| 1.6 | 0.061872 | 0.062692 | 0.063507 | 0.064317 | 0.065123 | 0.065923 | 0.066718 | 0.067509 | 0.068295 | 0.069076 |
| 1.7 | 0.069853 | 0.070625 | 0.071392 | 0.072155 | 0.072914 | 0.073669 | 0.074419 | 0.075165 | 0.075906 | 0.076644 |
| 1.8 | 0.077377 | 0.078106 | 0.078832 | 0.079553 | 0.080270 | 0.080984 | 0.081694 | 0.082399 | 0.083102 | 0.083800 |
| 1.9 | 0.084495 | 0.085186 | 0.085873 | 0.086557 | 0.087237 | 0.087914 | 0.088587 | 0.089257 | 0.089924 | 0.090587 |
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Logarithm Table for base 1991 — N = 2.00–2.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2.0 | 0.091247 | 0.091903 | 0.092557 | 0.093207 | 0.093854 | 0.094497 | 0.095138 | 0.095776 | 0.096410 | 0.097041 |
| 2.1 | 0.097670 | 0.098295 | 0.098917 | 0.099537 | 0.100154 | 0.100767 | 0.101378 | 0.101986 | 0.102591 | 0.103194 |
| 2.2 | 0.103794 | 0.104391 | 0.104985 | 0.105577 | 0.106166 | 0.106752 | 0.107336 | 0.107917 | 0.108496 | 0.109072 |
| 2.3 | 0.109645 | 0.110216 | 0.110785 | 0.111351 | 0.111915 | 0.112476 | 0.113035 | 0.113592 | 0.114146 | 0.114698 |
| 2.4 | 0.115248 | 0.115795 | 0.116340 | 0.116883 | 0.117424 | 0.117962 | 0.118499 | 0.119033 | 0.119564 | 0.120094 |
| 2.5 | 0.120622 | 0.121147 | 0.121671 | 0.122192 | 0.122711 | 0.123229 | 0.123744 | 0.124257 | 0.124768 | 0.125278 |
| 2.6 | 0.125785 | 0.126290 | 0.126794 | 0.127295 | 0.127795 | 0.128292 | 0.128788 | 0.129282 | 0.129774 | 0.130265 |
| 2.7 | 0.130753 | 0.131240 | 0.131725 | 0.132208 | 0.132689 | 0.133169 | 0.133646 | 0.134123 | 0.134597 | 0.135070 |
| 2.8 | 0.135541 | 0.136010 | 0.136478 | 0.136944 | 0.137408 | 0.137871 | 0.138332 | 0.138791 | 0.139249 | 0.139705 |
| 2.9 | 0.140160 | 0.140613 | 0.141065 | 0.141515 | 0.141963 | 0.142410 | 0.142856 | 0.143300 | 0.143742 | 0.144183 |
Logarithm Table for base 1991 — N = 3.00–3.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3.0 | 0.144623 | 0.145061 | 0.145498 | 0.145933 | 0.146367 | 0.146799 | 0.147230 | 0.147659 | 0.148087 | 0.148514 |
| 3.1 | 0.148939 | 0.149363 | 0.149786 | 0.150207 | 0.150627 | 0.151046 | 0.151463 | 0.151879 | 0.152294 | 0.152707 |
| 3.2 | 0.153119 | 0.153530 | 0.153939 | 0.154347 | 0.154754 | 0.155160 | 0.155564 | 0.155967 | 0.156369 | 0.156770 |
| 3.3 | 0.157170 | 0.157568 | 0.157965 | 0.158361 | 0.158756 | 0.159149 | 0.159542 | 0.159933 | 0.160323 | 0.160712 |
| 3.4 | 0.161100 | 0.161486 | 0.161872 | 0.162256 | 0.162639 | 0.163021 | 0.163402 | 0.163782 | 0.164161 | 0.164539 |
| 3.5 | 0.164916 | 0.165291 | 0.165666 | 0.166039 | 0.166411 | 0.166783 | 0.167153 | 0.167522 | 0.167891 | 0.168258 |
| 3.6 | 0.168624 | 0.168989 | 0.169353 | 0.169716 | 0.170079 | 0.170440 | 0.170800 | 0.171159 | 0.171517 | 0.171875 |
| 3.7 | 0.172231 | 0.172586 | 0.172940 | 0.173294 | 0.173646 | 0.173998 | 0.174348 | 0.174698 | 0.175047 | 0.175395 |
| 3.8 | 0.175741 | 0.176087 | 0.176432 | 0.176777 | 0.177120 | 0.177462 | 0.177804 | 0.178144 | 0.178484 | 0.178823 |
| 3.9 | 0.179161 | 0.179498 | 0.179834 | 0.180170 | 0.180504 | 0.180838 | 0.181171 | 0.181503 | 0.181834 | 0.182164 |
Logarithm Table for base 1991 — N = 4.00–4.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4.0 | 0.182494 | 0.182822 | 0.183150 | 0.183477 | 0.183804 | 0.184129 | 0.184454 | 0.184778 | 0.185101 | 0.185423 |
| 4.1 | 0.185744 | 0.186065 | 0.186385 | 0.186704 | 0.187022 | 0.187340 | 0.187657 | 0.187973 | 0.188288 | 0.188603 |
| 4.2 | 0.188917 | 0.189230 | 0.189542 | 0.189854 | 0.190164 | 0.190474 | 0.190784 | 0.191093 | 0.191400 | 0.191708 |
| 4.3 | 0.192014 | 0.192320 | 0.192625 | 0.192929 | 0.193233 | 0.193536 | 0.193838 | 0.194140 | 0.194441 | 0.194741 |
| 4.4 | 0.195041 | 0.195339 | 0.195638 | 0.195935 | 0.196232 | 0.196528 | 0.196824 | 0.197118 | 0.197413 | 0.197706 |
| 4.5 | 0.197999 | 0.198291 | 0.198583 | 0.198874 | 0.199164 | 0.199454 | 0.199743 | 0.200031 | 0.200319 | 0.200606 |
| 4.6 | 0.200892 | 0.201178 | 0.201463 | 0.201748 | 0.202032 | 0.202315 | 0.202598 | 0.202880 | 0.203162 | 0.203443 |
| 4.7 | 0.203723 | 0.204003 | 0.204282 | 0.204561 | 0.204839 | 0.205116 | 0.205393 | 0.205670 | 0.205945 | 0.206220 |
| 4.8 | 0.206495 | 0.206769 | 0.207042 | 0.207315 | 0.207587 | 0.207859 | 0.208130 | 0.208401 | 0.208671 | 0.208940 |
| 4.9 | 0.209209 | 0.209478 | 0.209745 | 0.210013 | 0.210279 | 0.210546 | 0.210811 | 0.211076 | 0.211341 | 0.211605 |
Logarithm Table for base 1991 — N = 5.00–5.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5.0 | 0.211869 | 0.212132 | 0.212394 | 0.212656 | 0.212918 | 0.213179 | 0.213439 | 0.213699 | 0.213958 | 0.214217 |
| 5.1 | 0.214476 | 0.214733 | 0.214991 | 0.215248 | 0.215504 | 0.215760 | 0.216015 | 0.216270 | 0.216525 | 0.216778 |
| 5.2 | 0.217032 | 0.217285 | 0.217537 | 0.217789 | 0.218041 | 0.218292 | 0.218542 | 0.218792 | 0.219042 | 0.219291 |
| 5.3 | 0.219539 | 0.219787 | 0.220035 | 0.220282 | 0.220529 | 0.220775 | 0.221021 | 0.221267 | 0.221512 | 0.221756 |
| 5.4 | 0.222000 | 0.222244 | 0.222487 | 0.222729 | 0.222972 | 0.223213 | 0.223455 | 0.223695 | 0.223936 | 0.224176 |
| 5.5 | 0.224415 | 0.224655 | 0.224893 | 0.225132 | 0.225369 | 0.225607 | 0.225844 | 0.226080 | 0.226316 | 0.226552 |
| 5.6 | 0.226787 | 0.227022 | 0.227257 | 0.227491 | 0.227724 | 0.227958 | 0.228190 | 0.228423 | 0.228655 | 0.228886 |
| 5.7 | 0.229117 | 0.229348 | 0.229579 | 0.229809 | 0.230038 | 0.230267 | 0.230496 | 0.230724 | 0.230952 | 0.231180 |
| 5.8 | 0.231407 | 0.231634 | 0.231860 | 0.232086 | 0.232312 | 0.232537 | 0.232762 | 0.232986 | 0.233210 | 0.233434 |
| 5.9 | 0.233657 | 0.233880 | 0.234103 | 0.234325 | 0.234547 | 0.234768 | 0.234989 | 0.235210 | 0.235430 | 0.235650 |
Logarithm Table for base 1991 — N = 6.00–6.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6.0 | 0.235870 | 0.236089 | 0.236308 | 0.236526 | 0.236744 | 0.236962 | 0.237180 | 0.237397 | 0.237613 | 0.237830 |
| 6.1 | 0.238046 | 0.238261 | 0.238477 | 0.238692 | 0.238906 | 0.239120 | 0.239334 | 0.239548 | 0.239761 | 0.239974 |
| 6.2 | 0.240186 | 0.240398 | 0.240610 | 0.240822 | 0.241033 | 0.241244 | 0.241454 | 0.241664 | 0.241874 | 0.242083 |
| 6.3 | 0.242293 | 0.242501 | 0.242710 | 0.242918 | 0.243126 | 0.243333 | 0.243540 | 0.243747 | 0.243954 | 0.244160 |
| 6.4 | 0.244366 | 0.244571 | 0.244776 | 0.244981 | 0.245186 | 0.245390 | 0.245594 | 0.245798 | 0.246001 | 0.246204 |
| 6.5 | 0.246407 | 0.246609 | 0.246811 | 0.247013 | 0.247214 | 0.247415 | 0.247616 | 0.247817 | 0.248017 | 0.248217 |
| 6.6 | 0.248417 | 0.248616 | 0.248815 | 0.249014 | 0.249212 | 0.249410 | 0.249608 | 0.249805 | 0.250003 | 0.250200 |
| 6.7 | 0.250396 | 0.250593 | 0.250789 | 0.250984 | 0.251180 | 0.251375 | 0.251570 | 0.251764 | 0.251959 | 0.252153 |
| 6.8 | 0.252346 | 0.252540 | 0.252733 | 0.252926 | 0.253119 | 0.253311 | 0.253503 | 0.253695 | 0.253886 | 0.254077 |
| 6.9 | 0.254268 | 0.254459 | 0.254649 | 0.254839 | 0.255029 | 0.255219 | 0.255408 | 0.255597 | 0.255786 | 0.255974 |
Logarithm Table for base 1991 — N = 7.00–7.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.0 | 0.256162 | 0.256350 | 0.256538 | 0.256725 | 0.256913 | 0.257099 | 0.257286 | 0.257472 | 0.257658 | 0.257844 |
| 7.1 | 0.258030 | 0.258215 | 0.258400 | 0.258585 | 0.258769 | 0.258953 | 0.259137 | 0.259321 | 0.259505 | 0.259688 |
| 7.2 | 0.259871 | 0.260054 | 0.260236 | 0.260418 | 0.260600 | 0.260782 | 0.260963 | 0.261145 | 0.261325 | 0.261506 |
| 7.3 | 0.261687 | 0.261867 | 0.262047 | 0.262227 | 0.262406 | 0.262585 | 0.262764 | 0.262943 | 0.263121 | 0.263300 |
| 7.4 | 0.263478 | 0.263655 | 0.263833 | 0.264010 | 0.264187 | 0.264364 | 0.264541 | 0.264717 | 0.264893 | 0.265069 |
| 7.5 | 0.265245 | 0.265420 | 0.265595 | 0.265770 | 0.265945 | 0.266119 | 0.266294 | 0.266468 | 0.266641 | 0.266815 |
| 7.6 | 0.266988 | 0.267161 | 0.267334 | 0.267507 | 0.267679 | 0.267852 | 0.268024 | 0.268195 | 0.268367 | 0.268538 |
| 7.7 | 0.268709 | 0.268880 | 0.269051 | 0.269221 | 0.269391 | 0.269561 | 0.269731 | 0.269901 | 0.270070 | 0.270239 |
| 7.8 | 0.270408 | 0.270576 | 0.270745 | 0.270913 | 0.271081 | 0.271249 | 0.271417 | 0.271584 | 0.271751 | 0.271918 |
| 7.9 | 0.272085 | 0.272251 | 0.272418 | 0.272584 | 0.272750 | 0.272915 | 0.273081 | 0.273246 | 0.273411 | 0.273576 |
Logarithm Table for base 1991 — N = 8.00–8.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 8.0 | 0.273741 | 0.273905 | 0.274069 | 0.274233 | 0.274397 | 0.274561 | 0.274724 | 0.274888 | 0.275051 | 0.275213 |
| 8.1 | 0.275376 | 0.275538 | 0.275701 | 0.275863 | 0.276024 | 0.276186 | 0.276348 | 0.276509 | 0.276670 | 0.276831 |
| 8.2 | 0.276991 | 0.277152 | 0.277312 | 0.277472 | 0.277632 | 0.277791 | 0.277951 | 0.278110 | 0.278269 | 0.278428 |
| 8.3 | 0.278587 | 0.278745 | 0.278904 | 0.279062 | 0.279220 | 0.279378 | 0.279535 | 0.279692 | 0.279850 | 0.280007 |
| 8.4 | 0.280163 | 0.280320 | 0.280477 | 0.280633 | 0.280789 | 0.280945 | 0.281100 | 0.281256 | 0.281411 | 0.281566 |
| 8.5 | 0.281721 | 0.281876 | 0.282031 | 0.282185 | 0.282339 | 0.282493 | 0.282647 | 0.282801 | 0.282955 | 0.283108 |
| 8.6 | 0.283261 | 0.283414 | 0.283567 | 0.283719 | 0.283872 | 0.284024 | 0.284176 | 0.284328 | 0.284480 | 0.284632 |
| 8.7 | 0.284783 | 0.284934 | 0.285085 | 0.285236 | 0.285387 | 0.285537 | 0.285688 | 0.285838 | 0.285988 | 0.286138 |
| 8.8 | 0.286287 | 0.286437 | 0.286586 | 0.286735 | 0.286884 | 0.287033 | 0.287182 | 0.287330 | 0.287479 | 0.287627 |
| 8.9 | 0.287775 | 0.287923 | 0.288070 | 0.288218 | 0.288365 | 0.288512 | 0.288659 | 0.288806 | 0.288953 | 0.289099 |
Logarithm Table for base 1991 — N = 9.00–9.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 9.0 | 0.289246 | 0.289392 | 0.289538 | 0.289684 | 0.289830 | 0.289975 | 0.290120 | 0.290266 | 0.290411 | 0.290556 |
| 9.1 | 0.290700 | 0.290845 | 0.290989 | 0.291134 | 0.291278 | 0.291422 | 0.291566 | 0.291709 | 0.291853 | 0.291996 |
| 9.2 | 0.292139 | 0.292282 | 0.292425 | 0.292568 | 0.292710 | 0.292853 | 0.292995 | 0.293137 | 0.293279 | 0.293421 |
| 9.3 | 0.293562 | 0.293704 | 0.293845 | 0.293986 | 0.294127 | 0.294268 | 0.294409 | 0.294549 | 0.294690 | 0.294830 |
| 9.4 | 0.294970 | 0.295110 | 0.295250 | 0.295390 | 0.295529 | 0.295669 | 0.295808 | 0.295947 | 0.296086 | 0.296225 |
| 9.5 | 0.296363 | 0.296502 | 0.296640 | 0.296778 | 0.296916 | 0.297054 | 0.297192 | 0.297330 | 0.297467 | 0.297605 |
| 9.6 | 0.297742 | 0.297879 | 0.298016 | 0.298152 | 0.298289 | 0.298426 | 0.298562 | 0.298698 | 0.298834 | 0.298970 |
| 9.7 | 0.299106 | 0.299242 | 0.299377 | 0.299512 | 0.299648 | 0.299783 | 0.299918 | 0.300052 | 0.300187 | 0.300322 |
| 9.8 | 0.300456 | 0.300590 | 0.300724 | 0.300858 | 0.300992 | 0.301126 | 0.301260 | 0.301393 | 0.301526 | 0.301660 |
| 9.9 | 0.301793 | 0.301925 | 0.302058 | 0.302191 | 0.302323 | 0.302456 | 0.302588 | 0.302720 | 0.302852 | 0.302984 |
Logarithm Table for base 1991 — N = 10.00–10.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 10.0 | 0.303116 | 0.303247 | 0.303379 | 0.303510 | 0.303641 | 0.303772 | 0.303903 | 0.304034 | 0.304165 | 0.304295 |
| 10.1 | 0.304425 | 0.304556 | 0.304686 | 0.304816 | 0.304946 | 0.305076 | 0.305205 | 0.305335 | 0.305464 | 0.305593 |
| 10.2 | 0.305722 | 0.305851 | 0.305980 | 0.306109 | 0.306238 | 0.306366 | 0.306495 | 0.306623 | 0.306751 | 0.306879 |
| 10.3 | 0.307007 | 0.307135 | 0.307262 | 0.307390 | 0.307517 | 0.307644 | 0.307771 | 0.307898 | 0.308025 | 0.308152 |
| 10.4 | 0.308279 | 0.308405 | 0.308532 | 0.308658 | 0.308784 | 0.308910 | 0.309036 | 0.309162 | 0.309287 | 0.309413 |
| 10.5 | 0.309538 | 0.309664 | 0.309789 | 0.309914 | 0.310039 | 0.310164 | 0.310289 | 0.310413 | 0.310538 | 0.310662 |
| 10.6 | 0.310786 | 0.310910 | 0.311034 | 0.311158 | 0.311282 | 0.311406 | 0.311529 | 0.311653 | 0.311776 | 0.311899 |
| 10.7 | 0.312022 | 0.312145 | 0.312268 | 0.312391 | 0.312513 | 0.312636 | 0.312758 | 0.312881 | 0.313003 | 0.313125 |
| 10.8 | 0.313247 | 0.313369 | 0.313490 | 0.313612 | 0.313734 | 0.313855 | 0.313976 | 0.314097 | 0.314218 | 0.314339 |
| 10.9 | 0.314460 | 0.314581 | 0.314701 | 0.314822 | 0.314942 | 0.315063 | 0.315183 | 0.315303 | 0.315423 | 0.315543 |
Logarithm Table for base 1991 — N = 11.00–11.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 11.0 | 0.315662 | 0.315782 | 0.315902 | 0.316021 | 0.316140 | 0.316259 | 0.316378 | 0.316497 | 0.316616 | 0.316735 |
| 11.1 | 0.316854 | 0.316972 | 0.317091 | 0.317209 | 0.317327 | 0.317445 | 0.317563 | 0.317681 | 0.317799 | 0.317917 |
| 11.2 | 0.318034 | 0.318152 | 0.318269 | 0.318387 | 0.318504 | 0.318621 | 0.318738 | 0.318855 | 0.318971 | 0.319088 |
| 11.3 | 0.319205 | 0.319321 | 0.319437 | 0.319554 | 0.319670 | 0.319786 | 0.319902 | 0.320017 | 0.320133 | 0.320249 |
| 11.4 | 0.320364 | 0.320480 | 0.320595 | 0.320710 | 0.320825 | 0.320940 | 0.321055 | 0.321170 | 0.321285 | 0.321400 |
| 11.5 | 0.321514 | 0.321628 | 0.321743 | 0.321857 | 0.321971 | 0.322085 | 0.322199 | 0.322313 | 0.322427 | 0.322540 |
| 11.6 | 0.322654 | 0.322767 | 0.322881 | 0.322994 | 0.323107 | 0.323220 | 0.323333 | 0.323446 | 0.323559 | 0.323671 |
| 11.7 | 0.323784 | 0.323896 | 0.324009 | 0.324121 | 0.324233 | 0.324345 | 0.324457 | 0.324569 | 0.324681 | 0.324793 |
| 11.8 | 0.324904 | 0.325016 | 0.325127 | 0.325238 | 0.325350 | 0.325461 | 0.325572 | 0.325683 | 0.325794 | 0.325904 |
| 11.9 | 0.326015 | 0.326126 | 0.326236 | 0.326347 | 0.326457 | 0.326567 | 0.326677 | 0.326787 | 0.326897 | 0.327007 |
Logarithm Table for base 1991 — N = 12.00–12.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 12.0 | 0.327117 | 0.327226 | 0.327336 | 0.327445 | 0.327555 | 0.327664 | 0.327773 | 0.327882 | 0.327991 | 0.328100 |
| 12.1 | 0.328209 | 0.328318 | 0.328427 | 0.328535 | 0.328644 | 0.328752 | 0.328860 | 0.328969 | 0.329077 | 0.329185 |
| 12.2 | 0.329293 | 0.329400 | 0.329508 | 0.329616 | 0.329724 | 0.329831 | 0.329938 | 0.330046 | 0.330153 | 0.330260 |
| 12.3 | 0.330367 | 0.330474 | 0.330581 | 0.330688 | 0.330795 | 0.330901 | 0.331008 | 0.331114 | 0.331221 | 0.331327 |
| 12.4 | 0.331433 | 0.331539 | 0.331645 | 0.331751 | 0.331857 | 0.331963 | 0.332069 | 0.332174 | 0.332280 | 0.332385 |
| 12.5 | 0.332491 | 0.332596 | 0.332701 | 0.332806 | 0.332911 | 0.333016 | 0.333121 | 0.333226 | 0.333330 | 0.333435 |
| 12.6 | 0.333539 | 0.333644 | 0.333748 | 0.333853 | 0.333957 | 0.334061 | 0.334165 | 0.334269 | 0.334373 | 0.334476 |
| 12.7 | 0.334580 | 0.334684 | 0.334787 | 0.334891 | 0.334994 | 0.335097 | 0.335201 | 0.335304 | 0.335407 | 0.335510 |
| 12.8 | 0.335613 | 0.335715 | 0.335818 | 0.335921 | 0.336023 | 0.336126 | 0.336228 | 0.336331 | 0.336433 | 0.336535 |
| 12.9 | 0.336637 | 0.336739 | 0.336841 | 0.336943 | 0.337045 | 0.337146 | 0.337248 | 0.337349 | 0.337451 | 0.337552 |
Logarithm Table for base 1991 — N = 13.00–13.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 13.0 | 0.337654 | 0.337755 | 0.337856 | 0.337957 | 0.338058 | 0.338159 | 0.338260 | 0.338361 | 0.338461 | 0.338562 |
| 13.1 | 0.338662 | 0.338763 | 0.338863 | 0.338963 | 0.339064 | 0.339164 | 0.339264 | 0.339364 | 0.339464 | 0.339564 |
| 13.2 | 0.339663 | 0.339763 | 0.339863 | 0.339962 | 0.340062 | 0.340161 | 0.340260 | 0.340360 | 0.340459 | 0.340558 |
| 13.3 | 0.340657 | 0.340756 | 0.340855 | 0.340954 | 0.341052 | 0.341151 | 0.341250 | 0.341348 | 0.341446 | 0.341545 |
| 13.4 | 0.341643 | 0.341741 | 0.341839 | 0.341937 | 0.342035 | 0.342133 | 0.342231 | 0.342329 | 0.342427 | 0.342524 |
| 13.5 | 0.342622 | 0.342719 | 0.342817 | 0.342914 | 0.343011 | 0.343108 | 0.343206 | 0.343303 | 0.343400 | 0.343497 |
| 13.6 | 0.343593 | 0.343690 | 0.343787 | 0.343883 | 0.343980 | 0.344076 | 0.344173 | 0.344269 | 0.344365 | 0.344462 |
| 13.7 | 0.344558 | 0.344654 | 0.344750 | 0.344846 | 0.344942 | 0.345037 | 0.345133 | 0.345229 | 0.345324 | 0.345420 |
| 13.8 | 0.345515 | 0.345611 | 0.345706 | 0.345801 | 0.345896 | 0.345991 | 0.346086 | 0.346181 | 0.346276 | 0.346371 |
| 13.9 | 0.346466 | 0.346560 | 0.346655 | 0.346749 | 0.346844 | 0.346938 | 0.347033 | 0.347127 | 0.347221 | 0.347315 |
Logarithm Table for base 1991 — N = 14.00–14.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 14.0 | 0.347409 | 0.347503 | 0.347597 | 0.347691 | 0.347785 | 0.347879 | 0.347972 | 0.348066 | 0.348159 | 0.348253 |
| 14.1 | 0.348346 | 0.348440 | 0.348533 | 0.348626 | 0.348719 | 0.348812 | 0.348905 | 0.348998 | 0.349091 | 0.349184 |
| 14.2 | 0.349277 | 0.349369 | 0.349462 | 0.349554 | 0.349647 | 0.349739 | 0.349832 | 0.349924 | 0.350016 | 0.350108 |
| 14.3 | 0.350200 | 0.350292 | 0.350384 | 0.350476 | 0.350568 | 0.350660 | 0.350752 | 0.350843 | 0.350935 | 0.351026 |
| 14.4 | 0.351118 | 0.351209 | 0.351300 | 0.351392 | 0.351483 | 0.351574 | 0.351665 | 0.351756 | 0.351847 | 0.351938 |
| 14.5 | 0.352029 | 0.352120 | 0.352210 | 0.352301 | 0.352391 | 0.352482 | 0.352572 | 0.352663 | 0.352753 | 0.352843 |
| 14.6 | 0.352934 | 0.353024 | 0.353114 | 0.353204 | 0.353294 | 0.353384 | 0.353473 | 0.353563 | 0.353653 | 0.353743 |
| 14.7 | 0.353832 | 0.353922 | 0.354011 | 0.354100 | 0.354190 | 0.354279 | 0.354368 | 0.354457 | 0.354547 | 0.354636 |
| 14.8 | 0.354725 | 0.354814 | 0.354902 | 0.354991 | 0.355080 | 0.355169 | 0.355257 | 0.355346 | 0.355434 | 0.355523 |
| 14.9 | 0.355611 | 0.355699 | 0.355788 | 0.355876 | 0.355964 | 0.356052 | 0.356140 | 0.356228 | 0.356316 | 0.356404 |
Logarithm Table for base 1991 — N = 15.00–15.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 15.0 | 0.356492 | 0.356579 | 0.356667 | 0.356755 | 0.356842 | 0.356930 | 0.357017 | 0.357105 | 0.357192 | 0.357279 |
| 15.1 | 0.357366 | 0.357453 | 0.357541 | 0.357628 | 0.357715 | 0.357801 | 0.357888 | 0.357975 | 0.358062 | 0.358149 |
| 15.2 | 0.358235 | 0.358322 | 0.358408 | 0.358495 | 0.358581 | 0.358668 | 0.358754 | 0.358840 | 0.358926 | 0.359012 |
| 15.3 | 0.359098 | 0.359184 | 0.359270 | 0.359356 | 0.359442 | 0.359528 | 0.359614 | 0.359699 | 0.359785 | 0.359871 |
| 15.4 | 0.359956 | 0.360042 | 0.360127 | 0.360212 | 0.360298 | 0.360383 | 0.360468 | 0.360553 | 0.360638 | 0.360723 |
| 15.5 | 0.360808 | 0.360893 | 0.360978 | 0.361063 | 0.361147 | 0.361232 | 0.361317 | 0.361401 | 0.361486 | 0.361570 |
| 15.6 | 0.361655 | 0.361739 | 0.361823 | 0.361908 | 0.361992 | 0.362076 | 0.362160 | 0.362244 | 0.362328 | 0.362412 |
| 15.7 | 0.362496 | 0.362580 | 0.362663 | 0.362747 | 0.362831 | 0.362914 | 0.362998 | 0.363081 | 0.363165 | 0.363248 |
| 15.8 | 0.363332 | 0.363415 | 0.363498 | 0.363581 | 0.363665 | 0.363748 | 0.363831 | 0.363914 | 0.363997 | 0.364079 |
| 15.9 | 0.364162 | 0.364245 | 0.364328 | 0.364410 | 0.364493 | 0.364576 | 0.364658 | 0.364741 | 0.364823 | 0.364905 |
Logarithm Table for base 1991 — N = 16.00–16.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 16.0 | 0.364988 | 0.365070 | 0.365152 | 0.365234 | 0.365316 | 0.365398 | 0.365480 | 0.365562 | 0.365644 | 0.365726 |
| 16.1 | 0.365808 | 0.365890 | 0.365971 | 0.366053 | 0.366134 | 0.366216 | 0.366297 | 0.366379 | 0.366460 | 0.366542 |
| 16.2 | 0.366623 | 0.366704 | 0.366785 | 0.366866 | 0.366948 | 0.367029 | 0.367110 | 0.367190 | 0.367271 | 0.367352 |
| 16.3 | 0.367433 | 0.367514 | 0.367594 | 0.367675 | 0.367756 | 0.367836 | 0.367917 | 0.367997 | 0.368077 | 0.368158 |
| 16.4 | 0.368238 | 0.368318 | 0.368399 | 0.368479 | 0.368559 | 0.368639 | 0.368719 | 0.368799 | 0.368879 | 0.368959 |
| 16.5 | 0.369038 | 0.369118 | 0.369198 | 0.369278 | 0.369357 | 0.369437 | 0.369516 | 0.369596 | 0.369675 | 0.369754 |
| 16.6 | 0.369834 | 0.369913 | 0.369992 | 0.370071 | 0.370151 | 0.370230 | 0.370309 | 0.370388 | 0.370467 | 0.370546 |
| 16.7 | 0.370624 | 0.370703 | 0.370782 | 0.370861 | 0.370939 | 0.371018 | 0.371097 | 0.371175 | 0.371254 | 0.371332 |
| 16.8 | 0.371410 | 0.371489 | 0.371567 | 0.371645 | 0.371723 | 0.371802 | 0.371880 | 0.371958 | 0.372036 | 0.372114 |
| 16.9 | 0.372192 | 0.372269 | 0.372347 | 0.372425 | 0.372503 | 0.372581 | 0.372658 | 0.372736 | 0.372813 | 0.372891 |
Logarithm Table for base 1991 — N = 17.00–17.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 17.0 | 0.372968 | 0.373046 | 0.373123 | 0.373200 | 0.373278 | 0.373355 | 0.373432 | 0.373509 | 0.373586 | 0.373663 |
| 17.1 | 0.373740 | 0.373817 | 0.373894 | 0.373971 | 0.374048 | 0.374125 | 0.374201 | 0.374278 | 0.374355 | 0.374431 |
| 17.2 | 0.374508 | 0.374584 | 0.374661 | 0.374737 | 0.374814 | 0.374890 | 0.374966 | 0.375043 | 0.375119 | 0.375195 |
| 17.3 | 0.375271 | 0.375347 | 0.375423 | 0.375499 | 0.375575 | 0.375651 | 0.375727 | 0.375803 | 0.375878 | 0.375954 |
| 17.4 | 0.376030 | 0.376105 | 0.376181 | 0.376257 | 0.376332 | 0.376408 | 0.376483 | 0.376558 | 0.376634 | 0.376709 |
| 17.5 | 0.376784 | 0.376859 | 0.376935 | 0.377010 | 0.377085 | 0.377160 | 0.377235 | 0.377310 | 0.377385 | 0.377460 |
| 17.6 | 0.377534 | 0.377609 | 0.377684 | 0.377759 | 0.377833 | 0.377908 | 0.377982 | 0.378057 | 0.378131 | 0.378206 |
| 17.7 | 0.378280 | 0.378355 | 0.378429 | 0.378503 | 0.378577 | 0.378652 | 0.378726 | 0.378800 | 0.378874 | 0.378948 |
| 17.8 | 0.379022 | 0.379096 | 0.379170 | 0.379244 | 0.379317 | 0.379391 | 0.379465 | 0.379538 | 0.379612 | 0.379686 |
| 17.9 | 0.379759 | 0.379833 | 0.379906 | 0.379980 | 0.380053 | 0.380127 | 0.380200 | 0.380273 | 0.380346 | 0.380420 |
Logarithm Table for base 1991 — N = 18.00–18.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 18.0 | 0.380493 | 0.380566 | 0.380639 | 0.380712 | 0.380785 | 0.380858 | 0.380931 | 0.381004 | 0.381076 | 0.381149 |
| 18.1 | 0.381222 | 0.381295 | 0.381367 | 0.381440 | 0.381513 | 0.381585 | 0.381658 | 0.381730 | 0.381803 | 0.381875 |
| 18.2 | 0.381947 | 0.382020 | 0.382092 | 0.382164 | 0.382236 | 0.382308 | 0.382381 | 0.382453 | 0.382525 | 0.382597 |
| 18.3 | 0.382669 | 0.382741 | 0.382812 | 0.382884 | 0.382956 | 0.383028 | 0.383100 | 0.383171 | 0.383243 | 0.383314 |
| 18.4 | 0.383386 | 0.383458 | 0.383529 | 0.383600 | 0.383672 | 0.383743 | 0.383815 | 0.383886 | 0.383957 | 0.384028 |
| 18.5 | 0.384100 | 0.384171 | 0.384242 | 0.384313 | 0.384384 | 0.384455 | 0.384526 | 0.384597 | 0.384668 | 0.384738 |
| 18.6 | 0.384809 | 0.384880 | 0.384951 | 0.385021 | 0.385092 | 0.385163 | 0.385233 | 0.385304 | 0.385374 | 0.385445 |
| 18.7 | 0.385515 | 0.385585 | 0.385656 | 0.385726 | 0.385796 | 0.385867 | 0.385937 | 0.386007 | 0.386077 | 0.386147 |
| 18.8 | 0.386217 | 0.386287 | 0.386357 | 0.386427 | 0.386497 | 0.386567 | 0.386637 | 0.386706 | 0.386776 | 0.386846 |
| 18.9 | 0.386915 | 0.386985 | 0.387055 | 0.387124 | 0.387194 | 0.387263 | 0.387333 | 0.387402 | 0.387472 | 0.387541 |
Logarithm Table for base 1991 — N = 19.00–19.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 19.0 | 0.387610 | 0.387679 | 0.387749 | 0.387818 | 0.387887 | 0.387956 | 0.388025 | 0.388094 | 0.388163 | 0.388232 |
| 19.1 | 0.388301 | 0.388370 | 0.388439 | 0.388508 | 0.388577 | 0.388645 | 0.388714 | 0.388783 | 0.388851 | 0.388920 |
| 19.2 | 0.388989 | 0.389057 | 0.389126 | 0.389194 | 0.389263 | 0.389331 | 0.389399 | 0.389468 | 0.389536 | 0.389604 |
| 19.3 | 0.389672 | 0.389741 | 0.389809 | 0.389877 | 0.389945 | 0.390013 | 0.390081 | 0.390149 | 0.390217 | 0.390285 |
| 19.4 | 0.390353 | 0.390421 | 0.390488 | 0.390556 | 0.390624 | 0.390692 | 0.390759 | 0.390827 | 0.390895 | 0.390962 |
| 19.5 | 0.391030 | 0.391097 | 0.391165 | 0.391232 | 0.391299 | 0.391367 | 0.391434 | 0.391501 | 0.391569 | 0.391636 |
| 19.6 | 0.391703 | 0.391770 | 0.391837 | 0.391904 | 0.391971 | 0.392038 | 0.392105 | 0.392172 | 0.392239 | 0.392306 |
| 19.7 | 0.392373 | 0.392440 | 0.392506 | 0.392573 | 0.392640 | 0.392707 | 0.392773 | 0.392840 | 0.392906 | 0.392973 |
| 19.8 | 0.393039 | 0.393106 | 0.393172 | 0.393239 | 0.393305 | 0.393371 | 0.393438 | 0.393504 | 0.393570 | 0.393636 |
| 19.9 | 0.393703 | 0.393769 | 0.393835 | 0.393901 | 0.393967 | 0.394033 | 0.394099 | 0.394165 | 0.394231 | 0.394297 |
Logarithm Table for base 1991 — N = 20.00–20.99
| N.i | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 20.0 | 0.394363 | 0.394428 | 0.394494 | 0.394560 | 0.394626 | 0.394691 | 0.394757 | 0.394822 | 0.394888 | 0.394954 |
| 20.1 | 0.395019 | 0.395085 | 0.395150 | 0.395215 | 0.395281 | 0.395346 | 0.395411 | 0.395477 | 0.395542 | 0.395607 |
| 20.2 | 0.395672 | 0.395738 | 0.395803 | 0.395868 | 0.395933 | 0.395998 | 0.396063 | 0.396128 | 0.396193 | 0.396258 |
| 20.3 | 0.396322 | 0.396387 | 0.396452 | 0.396517 | 0.396582 | 0.396646 | 0.396711 | 0.396776 | 0.396840 | 0.396905 |
| 20.4 | 0.396969 | 0.397034 | 0.397098 | 0.397163 | 0.397227 | 0.397292 | 0.397356 | 0.397420 | 0.397485 | 0.397549 |
| 20.5 | 0.397613 | 0.397677 | 0.397741 | 0.397806 | 0.397870 | 0.397934 | 0.397998 | 0.398062 | 0.398126 | 0.398190 |
| 20.6 | 0.398254 | 0.398318 | 0.398381 | 0.398445 | 0.398509 | 0.398573 | 0.398637 | 0.398700 | 0.398764 | 0.398828 |
| 20.7 | 0.398891 | 0.398955 | 0.399018 | 0.399082 | 0.399145 | 0.399209 | 0.399272 | 0.399336 | 0.399399 | 0.399462 |
| 20.8 | 0.399526 | 0.399589 | 0.399652 | 0.399715 | 0.399778 | 0.399842 | 0.399905 | 0.399968 | 0.400031 | 0.400094 |
| 20.9 | 0.400157 | 0.400220 | 0.400283 | 0.400346 | 0.400409 | 0.400472 | 0.400534 | 0.400597 | 0.400660 | 0.400723 |
Other Bases
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