- (define-quantity name expr)syntax
Defines a derivative quantity NAME.
EXPR is an S-expression with the following syntax:
quantity-expr ::= base-quantity | derived-quantity | (* quantity-expr quantity-expr) | (* quantity-expr integer) | (/ quantity-expr quantity-expr) | (/ quantity-expr integer) | (** quantity-expr integer)where
- base-quantity
- one of the predefined base quantities
- derived-quantity
- a quantity created by define-quantity
- **
- exponentiation operator