HP Fortran Programmer's Reference (September 2007)

Intrinsic procedures
Intrinsic procedure specifications
Chapter 11550
If STATUS is supplied, the calling program exits with a return code status of STATUS.
Otherwise the return code status is indeterminate.
In csh the $status environment variable holds the return code for the last executed
command. In ksh, the $? environment variable holds the return code.
EXP(X)
Description
Exponential.
Class
Elemental function.
Argument
X must be of type real or complex.
Result type/
type parameters
Same as X.
Result value
The result has a value equal to a processor-dependent approximation to e
x
. If X is of type
complex, its imaginary part is regarded as a value in radians.
Specific forms
CEXP,CDEXP, DEXP, QEXP,ZEXP.
EXPONENT(X)
Description
Returns the exponent part of the argument when represented as a model number.
Class
Elemental function.