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Subs

symbolic expression substitution

Calling Sequence

s = Subs( e, r, b )

Arguments

s, e, r, ,b: symbolic

Description

Replaces in expression e a subexpression r by b and returns the modified expression s.

Examples

// create some expressions
e = Sym("x*y*z");
x = Sym("x");
y = Sym("y");
z = Sym("z");

// first replace y by x in e
e = Subs(e, y, x)

// then replace z by x
e = Subs(e, z, x)

Authors

Dirk Reusch, Kybernetik Dr. Reusch

Bibliography

SymEngine: C++ library for fast symbolic manipulation.

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