## ABS

**Function Type**:

ABS will function on integer, real and complex numbers.

**Function Purpose**:

This intrinsic function will take the argument that is encapsulated in parenthesis and
return its absolute value. **Note: **For complex numbers, the function will return the square
root of the sum of the squares of the real and imaginary parts.

**Required Arguments:**

abs(x)

Where x is either a REAL, INTEGER or COMPLEX argument.

### Optional Arguments:

There are none.

### Results:

For the following variables:

real x1

integer, number

x1 = 29.0e3

number = -56

abs(x1) and abs(number) will produce 29.0e3 and 56 respectivly.

**For more information and examples see:**

lectures seven, and sixteen

examples newton1.f, odeint.f, secant.f

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