What would be the best way, for students, to define functions of an
arbitrary (but fixed) number of variables?
What I am using right now is a function:
def makevars(prefix, n):
return var(' '.join([prefix+str(i) for i in range(n)]))
So, for example:
x=makevars('x',5)
Creates the 5 variables (x0, x1, x2, x3, x4) and assigns then to x.
Then you can write stuff like:
fexpr = sum(sin(v)^2 for v in x); fexpr
and do calculus:
diff(fexpr,x1)
Is this a decent way to do it, or there is something predefined, and
I'm reinventing a wheel?
I wanted to put my worksheet on sagenb.org, but the server seems to be
down. I uploaded the .sws file to the group files.
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