Some common functions in Maxima - trig, logarithms, the exponential, and square root

http://maxima.sourceforge.net/docs/manual/en/maxima_10.html#SEC47

exp(x)
log(x)
sqrt(x)
acos(x)
acosh(x)
acot(x)
acoth(x)
asin(x)
asinh(x)
asec(x)
asech(x)
acsc(x)
acsch(x)
atan(x)
atanh(x)
cos(x)
cosh(x)
cot(x)
coth(x)
sin(x)
sinh(x)
sec(x)
sech(x)
csc(x)
csch(x)
tan(x)
tanh(x)

Maxima does not have a built-in function for the base 10 logarithm or other bases. log10(x) := log(x) / log(10) is a useful definition.