# IntegrationResultRFToFunction R¶

complexExpand(i) returns the expanded complex function corresponding to i.
complexIntegrate(f, x) returns the integral of f(x)dx where x is viewed as a complex variable.
expand(i, x) returns the list of possible real functions of x corresponding to i.
integrate(f, x) returns the integral of f(x)dx where x is viewed as a real variable.
split(u(x) + sum_{P(a)=0} Q(a, x)) returns u(x) + sum_{P1(a)=0} Q(a, x) + ... + sum_{Pn(a)=0} Q(a, x) where P1, ..., Pn are the factors of P.