Hello !
I test with success :
var('m')
plot (m^2,m,0,6) # for one plot
plot ([m^3],m,0,6) # for one plot
plot(sqrt(m^2+1),m,0,6)
plot([sqrt(m^2+1)],m,0,6)
plot(real (sqrt(m^2+1)),m,0,6)
They are all right
But this one fails :
plot([real (sqrt(m^2+1))],m,0,6)
Of corse I don't want to plot only this curve, but I try to plot the 4
solutions in the complex plane
of m -> "the roots of z^4+2*m*z^2+1"
solve(z^4+2*m*z^2+1, z) is fine, then I play with .rhs(), call a
parametric_plot and get errors.
I feel this error in around sqrt because I get also error for
parametric_plot ([real(sqrt(m^2-1)),imaginary(sqrt(m^2-1))],m,-6,6)
and I have no error for
parametric_plot ([real(m^2-1),imaginary(m^2-1)],m,-6,6)
but I don't see any line, even if I wait one...
François
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