LOG

This function determines the natural logarithm of a number.

There are two types of logarithms widely in use. They are the "natural logarithm" and the "base 10 logarithm". Most scientific calculators can do both. To distinguish between them, they use the terminology ln() for the natural logarithm and log() for the base 10 logarithm. The inverse functions are e^x and 10^x respectively. abcDB, however, only supports the natural logarithm. In abcDB, Log() is the natural logarithm.

LOG(Number)


PARAMETERS

Number

The number from which to determine the logarithm.

Example:
Prompt the user for a value, save that value in a variable named NUMBER and then save the LOG of NUMBER into the TEXT1 textbox.

SETMEM(Number//<<”Enter a number”>>)

SETVALUE(~TEXT1~//LOG(<!Number!>))