ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Thu, 01 Mar 2012 09:26:06 +0100solving sqrt(-1) to a real numberhttps://ask.sagemath.org/question/8762/solving-sqrt-1-to-a-real-number/Here is what I am trying to do:
var('x')
A(x)=x/2+(4-x*x)^(1/2)
assume(0<x<2)
maximum = (derivative(A)==0).maxima_methods().rootscontract().simplify()
view(maximum)
view(solve(maximum,x))
A.plot(A,0,2)
and get i multiplied by the root of x^2... if I put the same equation into wolfram, it gives me a real number 2/sqrt(5) (which is correct and makes sense).
How can I make SageMath solve those? I tried simplify() and full_simplify(), maxima_methods() and rootscontract() gives an error in combination with solve().
I guess it's just some syntax error, sorry for that :(
For now I do most in the Sage - Cell Server, which is great.disiThu, 01 Mar 2012 09:26:06 +0100https://ask.sagemath.org/question/8762/