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9.177 LOG10 — Base 10 logarithm function

Description:

LOG10(X) computes the base 10 logarithm of X.

Standard:

Fortran 77 and later

Class:

Elemental function

Syntax:

RESULT = LOG10(X)

Arguments:
XThe type shall be REAL.
Return value:

The return value is of type REAL or COMPLEX. The kind type parameter is the same as X.

Example:
program test_log10
  real(8) :: x = 10.0_8
  x = log10(x)
end program test_log10
Specific names:
NameArgumentReturn typeStandard
ALOG10(X)REAL(4) XREAL(4)Fortran 95 and later
DLOG10(X)REAL(8) XREAL(8)Fortran 95 and later