integrat.spad line 47 [edit on github]
FunctionSpaceComplexIntegration provides functions for the indefinite integration of complex-valued functions.
complexIntegrate(f, x) returns the integral of f(x)dx where x is viewed as a complex variable.
internalIntegrate(f, x) returns the integral of f(x)dx where x is viewed as a complex variable.
internalIntegrate0 should be a local function, but is conditional.