# 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).