strange (and confusing) values given by exact arithmetic

[fbeleznay]

Describe the bug

Occasionally I find that the exact arithmetic engine gives strange values, which are confusing for students. An example is when I ask the calculator to give the argument of the complex number 3+4i.

Screenshots

Expected behavior

The answer arctan(4/3) would be a much easier answer to interpret. Even the current answer would be less confusing in the form pi/2-arctan(3/4).

Environment

• The platform(s) on which the problem happens: both the online simulator and the actual device

[adri1numworks]

Thanks for reaching out, this is well noted. We'll resolve this asap