Tehsinkhan Pathan (CA CMA DISA(ICAI) B.COM) (3956 Points)
01 June 2011HERE , I AM PROVIDING THE METHOD BY WHICH YOU CAN FIND LOG AND ANTILOG BY USING SIMPLE CALCULATOR AND THERE IS NO NEED OF TABLES..................
Tehsinkhan Pathan
(CA CMA DISA(ICAI) B.COM)
(3956 Points)
Replied 01 June 2011
FOR , TO FIND LOG
HOW TO FIND LOG BY USING SIMPLE CALCULATOR??????????
1. WRITE 2.7183
2. TAP ‘ √ ‘ (i.e. Square Root) 12 times
3. DEDUCT ‘ 1 ‘ (= 0.00024417206)
4. PRESS ‘ M+ ‘ KEY
5. WRITE THE NO. OF WHICH ,YOU WANT TO FIND LOG
(E.G. LOG 5 THEN WRITE 5)
6. TAP ‘ √ ‘ (i.e. Square Root) 12 times
7. DEDUCT ‘ 1 ‘
8. PRESS ‘ ÷ ‘
9. PRESS ‘ MRC’
10. PRESS ‘ = ‘ (ANSWER WILL BE IN BASE e)
IF TO FIND IN THE BASE OF 10 THEN :-
11. PRESS ‘ X ‘ (i.e. MULTIPLY BY) AND WRITE 0.4343
12. PRESS ‘ = ‘ (ANSWER WILL BE IN BASE 10)
NOTE :- ABOVE 1ST THEREE STEPS WILL BE COMMON SO IT IS BETTER TO
REMEMBER THE VALUE ‘ 0.00024417206 ‘
FOR EXAMPLE :- LOG 5 = 0.6990
NOW WE WANT TO FIND LOG OF 5 :-
1. WRITE 0.00024417206
2. TAP ‘ M+ ‘ KEY
3. WRITE THE NO. YOU WANT TO FIND THE LOG i.e. 5
4. TAP ‘ √ ‘ (i.e. square root) 12 TIMES (= 1.00039300638)
5. DEDUCT ‘ 1 ‘ (= 0.00039300638)
6. TAP ‘ ÷ ’
7. TAP ‘ MRC ’
8. TAP ‘ = ’ (1.6095 – ANSWER IN BASE e )
9. TAP ‘X’ (i.e. MULTIPLY) BY 0.4343 THEN TAP ‘=’
(0.6990 – ANSWER IN BASE 10)
NOTE FOR ABOVE EXAMPLE :-
WE CAN DIRECTLY DIVIDE BY 0.00024417206 IN STEP – 7 INSTEAD
OF USING ‘MRC’ BUTTON , IN SUCH CASE , THERE IS NO NEED OF
STEP – 1 & 2. YOU CAN DIRECTLY START FROM STEP -3
TO DOWNLOAD THE SAME , PLEASE FIND THE ATTACHED FILE....
Tehsinkhan Pathan
(CA CMA DISA(ICAI) B.COM)
(3956 Points)
Replied 01 June 2011
FOR, TO FIND ANTILOG .....
**HOW TO FIND ANTILOG BY USING SIMPLE
CALCULATOR?
STEPS TO BE FOLLOWED :-
1. WRITE THE NO.
2. TAP ÷ (i.e. divide ) by 0.4343 & = (equal to)
3. TAP X (i.e. Multiply ) by 0.00024417206
4. ADD ‘ 1 ‘
5. TAP ‘X & = ‘ (MULTIPLY & EQUAL TO) 12 TIMES SIMULTANEOUSLY.
FOR EXAMPLE :- LOG 5 = 0.6990
NOW WE WANT TO FIND ANTILOG OF 0.6990 THEN
1. 0.6990
2. (0.6990 ÷ 0.4343) = 1.60948653004
3. (1.60948653004 X 0.00024417206) = 0.00039299164
4. (0.00039299164 + 1) = 1.00039299164
5. (1.00039299164 X THEN =) FOR 12 TIMES
= 4.9997 ~ 5 (i.e. log 5)
TO DOWNLOAD THE SAME , FIND THE ATTACHED FILE......
Rishi
(Student of Std. 11th Science)
(26 Points)
Replied 29 March 2012
To find log following steps:
Example:
Vigneshwaran Namachivayam
(Industrial Trainee)
(26 Points)
Replied 09 March 2015
Satyam Sharma
(16 Points)
Replied 20 March 2016
In simple calci we found log on base 10 from simple trick...
1) press no. whoes log you want to find (e.g. log2)
2) press 19 times underroot button (1.00000132206)
3) subtract 1 (1.00000132206-1 = 0.00000132206)
4) multiply by 227695 (0.00000132206 * 227695 = 0.3010264517
Shefali Sachdeva
(2 Points)
Replied 17 February 2017
This answer was helpful...I need to find antilog by d same simple way...please tell me the same
Mʌŋɩsʜ Sɩŋʛʜ
(2 Points)
Replied 04 March 2017
TO FIND LOG BY USING CALCULATOR
1.) write No.
2) 19 times root
3) multiply by 227695
4) subtract 227695
5) final result is required LOG
so simple !!
Anmol Davesar
(Chartered Accountant)
(818 Points)
Replied 13 April 2017
harsh gupta
(2 Points)
Replied 22 September 2018
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