!echo ; This file shows how expressions are evaluated in SCIEQS. ; An expression can be entered at the ">" prompt and evaluated. 2 + 3 * 4 ; The answer is then displayed. Notice that the multiplication ; was completed before the addition because of the precedence rules. ; The answer can also be stored in variables and used later by ; refering to the variable names. x = 2 + 3 * 4 y = sqrt(x) ;'y' gets the square root of 'x' !list ; Because variable 'y' is defined in terms of variable 'x', changing ; variable 'x' will automatically change variable 'y'. x = (2 + 3) * 4 !list !noecho