The complex function

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It is a complex function of a real function of a variable.


It is created via icon of the numerical objects expandable bar (third form the bottom).

A real function can by modified with icon of the top toolbar.


For instance, if you want to define a complex function f with f(z) = (z + 1/z)^2, you can choose t as formal variable and enter formula (t + 1/t)^2.


See also : Complex calculus syntax.