Reconstruction of de Decker-Vlacq's 1628 Table of Common Logarithms

Common logarithms from 1 to 150

Num.	Logarithmi	Differ.	Num.	Logarithmi	Differ.	Num.	Logarithmi	Differ.
1	0,00000,00000	30102,99956	51	1,70757,01760	843,31675	101	2,00432,13737	427,87979
2	3,01029,99566	17609,12590	52	1,71600,33436	827,25259	102	2,00860,01717	423,70529
3	4,77121,25471	12493,87366	53	1,72427,58696	811,78902	103	2,01283,72247	419,61145
4	6,02059,99132	9691,00130	54	1,73239,37598	796,89296	104	2,01703,33392	415,59597
5	6,98970,00433	7918,12460	55	1,74036,26894	782,53375	105	2,02118,92990	411,65661
6	7,78151,25038	6694,67896	56	1,74818,80270	768,68286	106	2,02530,58652	407,79124
7	8,45098,04001	5799,19469	57	1,75587,48556	755,31378	107	2,02938,37776	403,99778
8	9,03089,98699	5115,25224	58	1,76342,79935	742,40180	108	2,03342,37554	400,27424
9	9,54242,50943	4575,74905	59	1,77085,20116	729,92387	109	2,03742,64979	396,61872
10	1,00000,00000	4139,26851	60	1,77815,12503	717,85846	110	2,04139,26851	393,02936
11	1,04139,26851	3778,85608	61	1,78532,98350	706,18544	111	2,04532,29787	389,50438
12	1,07918,12460	3476,21062	62	1,79239,16894	694,88599	112	2,04921,80226	386,04208
13	1,11394,33523	3218,46833	63	1,79934,05494	683,94245	113	2,05307,84434	382,64078
14	1,14612,80356	2996,32233	64	1,80617,99739	673,33826	114	2,05690,48513	379,29890
15	1,17609,12590	2802,87236	65	1,81291,33566	663,05788	115	2,06069,78403	376,01488
16	1,20411,99826	2632,89387	66	1,81954,39355	653,08671	116	2,06445,79892	372,78725
17	1,23044,89213	2482,35837	67	1,82607,48027	643,41100	117	2,06818,58617	369,61455
18	1,25527,25051	2348,10958	68	1,83250,89127	634,01780	118	2,07188,20073	366,49540
19	1,27875,36009	2227,63947	69	1,83884,90907	624,89492	119	2,07554,69613	363,42846
20	1,30102,99956	2118,92990	70	1,84509,80400	616,03087	120	2,07918,12460	360,41242
21	1,32221,92947	2020,33860	71	1,85125,83487	607,41477	121	2,08278,53703	357,44603
22	1,34242,26808	1930,51551	72	1,85733,24964	599,03636	122	2,08635,98306	354,52807
23	1,36172,78360	1848,34056	73	1,86332,28601	590,88596	123	2,08990,51114	351,65737
24	1,38021,12417	1772,87669	74	1,86923,17197	582,95436	124	2,09342,16851	348,83278
25	1,39794,00086	1703,33392	75	1,87506,12633	575,23288	125	2,09691,00130	346,05321
26	1,41497,33479	1639,04161	76	1,88081,35922	567,71328	126	2,10037,05451	343,31758
27	1,43136,37641	1579,42671	77	1,88649,07251	560,38775	127	2,10380,37209	340,62486
28	1,44715,80313	1523,99665	78	1,89209,46026	553,24885	128	2,10720,99696	337,97406
29	1,46239,79978	1472,32568	79	1,89762,70912	546,28957	129	2,11058,97102	335,36420
30	1,47712,12547	1424,04391	80	1,90308,99869	539,50318	130	2,11394,33523	332,79433
31	1,49136,16938	1378,82844	81	1,90848,50188	532,88335	131	2,11727,12956	330,26355
32	1,50514,99783	1336,39615	82	1,91381,38523	526,42399	132	2,12057,39312	327,77097
33	1,51851,39398	1296,49771	83	1,91907,80923	520,11936	133	2,12385,16409	325,31573
34	1,53147,89170	1258,91273	84	1,92427,92860	513,96396	134	2,12710,47983	322,89701
35	1,54406,80443	1223,44564	85	1,92941,89257	507,95255	135	2,13033,37684	320,51398
36	1,55630,25007	1189,92232	86	1,93449,84512	502,08013	136	2,13353,89083	318,16587
37	1,56820,17240	1158,18725	87	1,93951,92526	496,34195	137	2,13672,05671	315,85192
38	1,57978,35966	1128,10104	88	1,94448,26721	490,73344	138	2,13987,90864	313,57138
39	1,59106,46070	1099,53843	89	1,94939,00066	485,25027	139	2,14301,48002	311,32354
40	1,60205,99913	1072,38653	90	1,95424,25094	479,88828	140	2,14612,80356	309,10769
41	1,61278,38567	1046,54336	91	1,95904,13923	474,64350	141	2,14921,91126	306,92317
42	1,62324,92903	1021,91651	92	1,96378,78273	469,51212	142	2,15228,83443	304,76930
43	1,63346,84555	998,42209	93	1,96848,29485	464,49050	143	2,15533,60374	302,64546
44	1,64345,26764	975,98372	94	1,97312,78535	459,57516	144	2,15836,24920	300,55101
45	1,65321,25137	954,53179	95	1,97772,36052	454,76277	145	2,16136,80022	298,48535
46	1,66275,78316	934,00262	96	1,98227,12330	450,05012	146	2,16435,28557	296,44789
47	1,67209,78579	914,33794	97	1,98677,17342	445,43414	147	2,16731,73347	294,43806
48	1,68124,12373	895,48426	98	1,99122,60756	440,91189	148	2,17026,17153	292,45530
49	1,69019,60800	877,39243	99	1,99563,51945	436,48054	149	2,17318,62684	290,49906
50	1,69897,00043	860,01717	100	2,00000,00000	432,13737	150	2,17609,12590	288,56882

This Demonstration reconstructs de Decker-Vlacq's table of common logarithms from Arithmetica Logarithmica (1628). The table consists of logarithms for numbers from 1 to 100000, 150 on each page. A page consists of three columns, each of 50 lines. A line consists of the number

n

,

log

10

(n)

calculated to 10 decimals, and the difference

log

10

(n+1)-

log

10

(n)

.