Hello, the introduction of expressions in the entry line, you can not display the expression in textbook or prettyprint notations, for example it is very necessary to verify that the original expression was written well, for many people linearizing a two-dimensional expression is complicated, I think that there should be an option to temporarily visualize a linear expression to 2D
exercises of operator priority.
1: a := 2; b := 2; c := 2;
2: (a+b/c)/(a/b+c)
1
3: 5*2/2*2+6*4/2*2-4*6*2/2*3/2
-2
4: 3^2*4/5^2-4*6*2/3*2+5*4/2*7
986/25
5: 4*2-5*6/2*3+4*3/6*2-6*2/2*3*2
-69
6: 2*3-4*5/6*2+3*4/5*6-6*5-4*3/2*4
-604/15
