MuPAD Pro Computing Essentials - Examples 

Example 5.0 - Quadratic Equation

This is the most classical example of a MuPAD procedure. Use this example to produce solutions of quadratic equations. Use it also to learn how to write simple procedures in MuPAD. 

• QuadEquation := proc(a,b,c)
  begin
     if a<>0 then
        delta := b^2-4*a*c;
        if delta >= 0 then
           x1 := (-b + sqrt(delta))/(2*a);
           x2 := (-b - sqrt(delta))/(2*a);
           return(x1, x2)
        else
           print("No real solutions")
        end
     else
        if b<>0 then
           x1 := -c/b
        else
           print("No solutions")
        end
     end
  end_proc:
  
• quadEquation(1000,-2,-1)