5^(sqrt 2) causes fend to hang

[DJ-Laser]

Happens in fend-core 1.5.6 and the fend cli 1.5.7 from nixpkgs

[printfn]

Yes, this is caused by how fend represents numbers as fractions, and is not easily solvable. As a workaround I would suggest calculating it in two steps, and using fewer decimal places for the second part.

> 5^1.414
approx. 9.7351710391