Fix for bug [ 1370433 ] trigsimp(sqrt(%i2))!=sqrt(trigsimp(%i2))?
Subject: Fix for bug [ 1370433 ] trigsimp(sqrt(%i2))!=sqrt(trigsimp(%i2))?
From: Raymond Toy
Date: Mon, 13 Nov 2006 16:12:56 -0500
>>>>> "Richard" == Richard Fateman <fateman at cs.berkeley.edu> writes:
>> -----Original Message-----
>> From: Raymond Toy [mailto:raymond.toy at ericsson.com]
>> Sent: Monday, November 13, 2006 6:26 AM
>> To: fateman at cs.berkeley.edu
>> Cc: 'Robert Dodier'; maxima at math.utexas.edu
>> Subject: Re: [Maxima] Fix for bug [ 1370433 ]
>> trigsimp(sqrt(%i2))!=sqrt(trigsimp(%i2))?
>>
>>
>> I don't know because I don't know what % is in this case, and I don't
>> know what you mean by "simplified(sqrt(%))" versus just "sqrt(%)".
>>
Richard> Z:ratsimp((x-y)^2);
Richard> Radcan(z)- z
Richard> (I used % instead of z).
Did you really mean to say radcan(sqrt(z))-sqrt(z) instead of radcan(z)-z?
Richard> The result, sqrt(y^2-2*x*y+x^2)-abs(y-x) is rather different from zero.
I guess I still don't follow. Sorry, my brain must not be working....
Ray