Log Functions

Version Ref:  4.8

 

LOG(n)

Natural logarithm (base e)

LOG10(n)

Common logarithm (base 10)

EXP(n)

Exponent function (e^n)

EXP10(n)

Base 10 exponent (10^n)

 

Examples:

 

When na = "100"; nb = "4.6051702", nc = "2.000000"

xx = LOG(na) returns natural log value "4.6051702"

xx = LOG10(na) returns common log value "2.000000"

xx = EXP(nb) returns antilog(base e) value "100.00000"

xx = EXP10(nc) returns antilog(base 10) value "100"

Note:

Natural Logarithms (also called Napierian logarithms) are logarithms to the base 'e' where e = 2.71828 (5 dec. places).