MathAction Pattern Matching

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FriCAS Problems

Nature of expressions ← ↑ → Piecewise Functions

Pattern Matching
last edited 18 years ago

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Say, I have

fricas

(1) -> test:=D(sin(z)^2, z)

\label{eq1}2 \ {\cos \left({z}\right)}\ {\sin \left({z}\right)} (1)

Type: Expression(Integer)

What is the easiest way to see, if the output has sin(z) ?

fricas

member?(sin(z),kernels(test))

\label{eq2} \mbox{\rm true} (2)

Type: Boolean