Expr's
Start Quantum again and reproduce what you see in the Quantum session below.
Sequences of Quantum objects surrounded by parentheses
(
and
)
denote Quantum
Expr's. Quantum
Expr's, like
(+ x y),
normally represent function applications. You can create
Expr's
directly by calling Quantum's function
Expr. Use functions
Length
and
Elt
to count and access the elements of an
Expr. Function
Args
returns all the arguments of an
Expr
as an
Array.
Use Eval to evaluate
Expr's
that you create before passing them to Quantum's mathematical functions.
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