Or it's possible that you meant to do lambdify((x, y), x*cos(y)) to create
a two-argument function.
Aaron Meurer
On Sat, Jan 10, 2015 at 3:44 PM, James Crist crist...@umn.edu wrote:
`lambdify` is intended for numeric evaluation (but can be made to evaluate
symbolically). By default, the
`lambdify` is intended for numeric evaluation (but can be made to evaluate
symbolically). By default, the functions `sin`, `cos`, etc... are pulled
from `math` or `numpy`, which expect floats (and if not given a float, they
attempt to convert to float).
What's happening here, is you're passing
