While working on #10682, with Maxima 5.26 I get
sage -t --long -force_lib devel/sage/sage/calculus/desolvers.py
**********************************************************************
File
"/mnt/usb1/scratch/dima/sage-5.0.beta5/devel/sage-main/sage/calculus/desolvers.py",
line 358:
sage: desolve(x*diff(y,x)-x*sqrt(y^2+x^2)-y == 0, y, contrib_ode=True)
Expected:
[x - arcsinh(y(x)/x) == c]
Got:
[1/2*(2*x^2*sqrt(x^(-2)) - 2*x*sqrt(x^(-2))*arcsinh(y(x)/sqrt(x^2))
- 2*x*sqrt(x^(-2))*arcsinh(y(x)^2/(sqrt(y(x)^2)*x)) +
log(4*(2*x^2*sqrt((x^2*y(x)^2 + y(x)^4)/x^2)*sqrt(x^(-2)) + x^2 +
2*y(x)^2)/x^2))/(x*sqrt(x^(-2))) == c]
**********************************************************************
1 items had failures:
1 of 59 in __main__.example_1
***Test Failed*** 1 failures.
Any idea whether the result here is the correct behaviour?
Thanks,
Dima
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