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CA IN PRACTICE... ( CA ) (490 Points)

05 May 2010

Dear Friends

Please Help

I m preparing the paper of SFM and facing difficulty in finding formula for calculating these values..........

1. How to calculate exponential values ( in Derivatives chapter).

2. Please give me the formula for the calculation the Z values.

3. How to calculate Log values.

4. How to calculate Antilog value.

Please give me formula to calculate above values without seeing the table (Log etc.)

Please guide.

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4 Replies

Ashok (Student) (25 Points)
Replied 23 February 2012

**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) I m very thankful for Mr. Tehsinkhan pathan, a CA Final Student. Source - /forum/find-log-and-antilog-by-using-simple-calculator--147142.asp

Ashok (Student) (25 Points)
Replied 23 February 2012

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

I m very thankful for Mr. Tehsinkhan pathan, a CA Final Student.
Source -
/forum/find-log-and-antilog-by-using-simple-calculator--147142.asp

Ashok (Student) (25 Points)
Replied 23 February 2012

**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)

I m very thankful for Mr. Tehsinkhan pathan, a CA Final Student.
Source -
/forum/find-log-and-antilog-by-using-simple-calculator--147142.asp