EXP

Natural Logarithm Exponent

This numeric function returns the exponent for a given numeric-value based on its natural logarithm. Given that the natural logarithm of a number is equal to an exponent, this function returns that exponent when given the number.

Syntax

EXP (numeric-value [,ERR=line-ref|,ERC=error-code])

numeric-value

is any number in the range of -262.49470060131 to +324.66449811215 (the exponents corresponding to the numeric limits within Thoroughbred Basic of +/-.99999999999999E-114 through +/-.99999999999999E+141).

line-ref

is the program line number or label to branch to if an error is produced by this function.

error-code

is a programmer-defined error code. Valid values are positive or negative whole numbers.

Remarks

This function returns a value that ranges from 0.1E-113 to 0.9E+141.

Note that EXP and NLG are reverse functions, that is:

EXP (NLG(number))=number
NLG (EXP(number))=number

Examples

EXP (0)

The result is 1.

EXP (1)

The result is 2.7182818284517.

See also

NLG function

From the Thoroughbred Basic Language Reference, Volume I: A–E, version 8.9.1. Open this page in the PDF