Arithmetic evaluator

[aloofschipperke]

A checklist for functionality in the arithmetic evaluator.

• ^_ or
• | or (non-standard)
• ! divide
• $! float divide
• # xor
• & and
• * multiply
• $* float multply
• + add
• $+ float add
• - subtract
• `$-' float subtract
• < > algebraic parens
• $< > infix evaluate
• $_ left shift
• $$_ float scale
• commands returning values
• symbols