Difference between revisions of "Manuals/calci/LOG10"
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*The logarithm of base 10 is called Common Logarithm or Decimal Logarithm. | *The logarithm of base 10 is called Common Logarithm or Decimal Logarithm. | ||
*It is denoted by <math>\log_{10}</math> or <math>log(x)</math>. | *It is denoted by <math>\log_{10}</math> or <math>log(x)</math>. | ||
− | * | + | *<math>\log_{10}(x)</math> is related to the number of decimal digits of a positive integer x: the number of digits is the smallest integer strictly bigger than <math>\log_{10}(x)</math>. |
*For e.g:log(5260)=3.7209 ,that is nearly(next digit) to 4. | *For e.g:log(5260)=3.7209 ,that is nearly(next digit) to 4. | ||
*That is the number of digits of 5260(4). | *That is the number of digits of 5260(4). |
Revision as of 06:05, 25 November 2013
LOG10(n)
- where is the positive real number.
Description
- This function gives the logarithm value with the base 10.
- The logarithm of x to base b is the solution y to the equation.i.e .
- For e.g The logarithm of 1000 to base 10 is 3. Because 1000=10*10*10=.
- The logarithm of base 10 is called Common Logarithm or Decimal Logarithm.
- It is denoted by or .
- is related to the number of decimal digits of a positive integer x: the number of digits is the smallest integer strictly bigger than .
- For e.g:log(5260)=3.7209 ,that is nearly(next digit) to 4.
- That is the number of digits of 5260(4).
Examples
- log 10(5)=0.698970004
- log(55)=1.740362689
- log(10)=1
- log(1)=0
- log(-10)=NaN
- log(0.25)=-0.602059991
See Also