*where <math>n</math> is the positive real number.
==Description==
==Description==
*This function gives the logarithm value with the base 10.
*This function gives the logarithm value with the base 10.
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*The logarithm of x to base b is the solution y to the equation.i.e b^y=x.
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*The logarithm of x to base b is the solution y to the equation.i.e <math>b^y=x</math>.
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*For e.g The logarithm of 1000 to base 10 is 3.because 1000=10*10*10=10^3.
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*For e.g The logarithm of 1000 to base 10 is 3. Because 1000=10*10*10=<math>10^3</math>.
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*The logarithm of base 10 is called common logarithm or decimal logarithm.
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*The logarithm of base 10 is called Common Logarithm or Decimal Logarithm.
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*It is denoted by log 10(x) or log(x).
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*It is denoted by <math>\log_{10}</math> or <math>log(x)</math>.
*log10(x) is related to the number of decimal digits of a positive integer x: the number of digits is the smallest integer strictly bigger than log10(x).
*log10(x) is related to the number of decimal digits of a positive integer x: the number of digits is the smallest integer strictly bigger than log10(x).
*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.