#### 7.7.1 Mathematical Functions ¶

Advanced mathematical functions take numeric arguments and produce numeric results.

Function: EXP `(exponent)` ¶

  Returns e (approximately 2.71828) raised to power exponent.

Function: LG10 `(number)` ¶

  Takes the base-10 logarithm of number. If number is not positive, the result is system-missing.

Function: LN `(number)` ¶

  Takes the base-e logarithm of number. If number is not positive, the result is system-missing.

Function: LNGAMMA `(number)` ¶

  Yields the base-e logarithm of the complete gamma of number. If number is a negative integer, the result is system-missing.

Function: SQRT `(number)` ¶

  Takes the square root of number. If number is negative, the result is system-missing.