mistake /* Maxima-5.17.1 */

• Subject: mistake /* Maxima-5.17.1 */
• From: Valery A. Lovchikov
• Date: Wed, 1 Apr 2009 10:19:12 +0400

Hi!

f:2*((u-cos(b))^2-u^2+2*cos(b)*u)+2*u^2-4*cos(b)*u;
x:factor(expand(f));
err:sqrt(factor(expand(f)))-radcan(sqrt(f));
/* sqrt(x^2)=abs(x), not sqrt(x^2)=x  */

Please corect.

Truly yours,
Valery Lovchikov

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