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>.  
*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).
+
*<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

  1. log 10(5)=0.698970004
  2. log(55)=1.740362689
  3. log(10)=1
  4. log(1)=0
  5. log(-10)=NaN
  6. log(0.25)=-0.602059991

See Also


References

Logarithm