ASKSAGE: Sage Q&A Forum - Latest question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 18 Oct 2011 08:07:48 -0500Real Solution of x^3+8 == 0?http://ask.sagemath.org/question/8393/real-solution-of-x38-0/I do not understand the following:
sage: assume(x,'real')
sage: solve(x^3+8==0,x)
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Why does this equation have no solution?
But -2 is a solution!
Thanks for help!
amaleaTue, 18 Oct 2011 08:07:48 -0500http://ask.sagemath.org/question/8393/exponential equation real solutionhttp://ask.sagemath.org/question/7720/exponential-equation-real-solution/How can I solve the equation
exp(2*x)+exp(-2*x)==2
to get only the real solution x==0 ?
Thanks for help.
amaleaSat, 02 Oct 2010 23:24:29 -0500http://ask.sagemath.org/question/7720/