System Functions
LOG( ) Return Base 10 Logarithm
 
Format LOG(num[,ERR=stmtref])
 
Where:
 
num Numeric expression whose base ten logarithm is to be returned.
 
stmtref Program line number or statement label to which to transfer control.
 
Returns Numeric, base ten logarithm.
 
Description The LOG( ) function returns the numeric base ten logarithm of a given number, rounded to the current PRECISION setting. This is the inverse of the EXP( ) function. ProvideX returns Error #40: Divide check or numeric overflow if the numeric value is negative.
 
Examples 0010 PRINT EXP(LOG(90)/3) ! Print cube root of 90