| Ausführliche Beschreibung | Math::Calculus::Expression can take an algebraic expression, parse it into a
tree structure, simplify the tree, substitute variables and named constants for
other variables or constants (which may be numeric), numerically evaluate the
tree and turn the tree back into an output of the same form as the input.
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It supports a wide range of expressions including the +, -, *, / and ^
(raise to power) operators, bracketed expressions to enable correct precedence
and the functions ln, exp, sin, cos, tan, sec, cosec, cot, sinh, cosh, tanh,
sech, cosech, coth, asin, acos, atan, asinh, acosh and atanh.
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