2020-04-21 09:37:44 +0200 | asked a question | Finding all values for a variable that I am trying to solve, the followng, simple problem using SageMath. When given a Function (f(x)=(4/x)) I want SageMath to find all values for x, so that f(x) will be real. In the given example it should return RR \ {0} meaning all real values except for 0. Is there a way to solve this problem in SageMath? |