AT&T 6300 Programmer's Manual page 257

Syntax
Remarks
Example
EXP
Function
Returns "e" (base of natural logarithms) to the
power of the argument.
EXP( numexp )
"numexp" must be <=87.3365. If EXP
overflows, the "Overflow" error message is
displayed, machine infinity with the
appropriate sign is supplied as the result, and
execution continues.
EXP is calculated in single precision, unless
"/D" is supplied in the GWBASIC command
line.
10 X=5
20 PRINT EXP(X-1]
RUN
54.59815
Ok
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