Dear Andy,
Thanks for your report.
Note that this result is not wrong with the extra parenthesis. Perhaps
a bit annoying.
SageMath is developed by volunteers and not perfect. You are very
welcome to contribute to its enhancement
http://doc.sagemath.org/html/en/developer/
Best
Vincent
Le 02/09/2018 à 16:42, Andy Howell a écrit :
Hello,
I'm not sure if this is a bug or not. I'm just starting to learn
differential equations. The latex returned for 'h' below has superfluous
() around the '-x' exponent.
y = var('y')
Plot1=plot_slope_field(2-y,(x,0,3),(y,0,20))
y = function('y')(x) # declare y to be a function of x
h = desolve(diff(y,x) + y - 2, y, ics=[0,7])
print expand(h)
print latex(expand(h))
5*e^(-x) + 2
5 \, e^{\left(-x\right)} + 2
It looks better with out the extra \left( and \right):
5 \, e^{-x} + 2
This is with 8.4beta2
Thanks,
Andy
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