## Log10

### Function Type:

Log10 is an elemental function that works on REAL arguments only

### Function Purpose:

The function log10 computes the common logarithm ( base 10 )of a specified number.

### Required Arguments:

log10(x)

The argument x must be either a real number or a variable of type REAL. The value of x
must be greater than zero.

### Optional Arguments:

There are no optional arguments to this function.

### Results:

The following variables are declared and x is given an initial value of 100.

real x,y,z
x = 100.0

The following common logarithms are then computed.

Y = log10(x)
Z = log10(1.0)

The results are that y will equal two and z will equal zero.

### For additional examples and information see:

log_plot.f
lecture seven

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Written by Jason Wehr : jcw142@psu.edu and Maintained by John Mahaffy :
jhm@cac.psu.edu

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