Hi,
Consider the following code:
x = var('x')
f = function('f')(x)
sol = desolve(diff(f,x), [f,x])
print "sol =", sol
solve(sol, _C)
For which I'm getting NameError: name '_C' is not defined. What would be the right way to set the integration constant after the resolution of the differential equation?
Thanks!
Like this (for instance setting the integration constant to 2):
sage: sol2 = sol.subs({SR.var('_C'): 2})
sage: print("sol = {}".format(sol2))
sol = 2
For the record, a workaround is to declare var('_C')right before solve(sol, _C).
Asked: 2017-02-02 12:10:46 +0200
Seen: 481 times
Last updated: Feb 10 '17
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