very slow solving of x^2-sqrt(2*x)+20=0

• Subject: very slow solving of x^2-sqrt(2*x)+20=0
• From: Mihail Denisenko
• Date: Tue, 6 Apr 2010 16:24:05 +0400

Hi,

If we use function algsys to solve equation x^2-sqrt(2*x)+20=0, then it
takes too much time.

(%i16)  algsys([x^2-sqrt(2)*y+20=0, x=y^2],[x,y]);
(%o16)                                []

Function algsys returns answer approximately in 30 seconds. Usually algsys
10-30 times faster.

Is it correct? Is it possible to fix that issue?

Best regards,
Mihail D

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