Get only real results

[Former user]

Hi,

I run the next code:

IExpr exp = util.evaluate("Solve(x^2+y^2==5,x)");

and gets the next results: {{x->-ISqrt(-5+y^2)},{x->ISqrt(-5+y^2)}}

I want to be able to get only the "real" solutions, and also get them in non complex format: x->Sqrt(y^2-5)

How can I do it?

[Axel Kramer]

This requires ConditionalExpression's whihch are not implemented yet.

One solution is for example:

ConditionalExpression(Sqrt(5 - y^2), -Sqrt(5) < y && y < Sqrt(5))

[Yehonatan Yochpaz]

Is there a way to get the "real" results in "real" format:

f.e, in the example above: {{x->-ISqrt(-5+y^2)},{x->Sqrt(y^2-5)}}

and not: {{x->-ISqrt(-5+y^2)},{x->ISqrt(-5+y^2)}}

[Axel Kramer]

Reopened here: https://github.com/axkr/symja_android_library/issues/2