[pstricks] how to use draw a circle of radius \sqrt{2} without using a calculator

Herbert Voss Herbert.Voss at FU-Berlin.DE
Wed Sep 9 10:23:38 CEST 2009

Luiz Fernando C Camargo schrieb:

> I know things like this
>   \SpecialCoor
>   \pscircle(!2 sqrt 2 mul 1){3}
> Fine, but I can't figure out how to draw, say, a circle of center
> (0,0) and radius \sqrt{2} without using a calculator. Is there an
> easy way?

with current pstricks.tex you can write

  \pscircle(!2 sqrt 2 mul 1){!2 sqrt}


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