Question re: PS2, Problem One
My solution to this problem ended up being similar to the given solution, except instead of iterating the for loop through range(0,len(poly)), I choose to iterate directly through "poly". However, this threw an error: "tuple indices must be integers".
My plan was that "for i in poly" would go through each indice in the tuple and assign that particular "i" the value of that indice. I had set up the code to multiply the value of poly[i] by x and then raise it to the value of the indice represented by "i". I didn't think I was modifying the value of the indice
MIT 6.00 Intro Computer Science (OCW)
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it seems to be saying that you are looking for element tuple[1.5], a fractional index into the tuple. without seeing any code, it's only a guess.
My code was: def evaluate(poly, x):
for i in poly:
sum =+ ((poly[i]*x)*i)
and then the value of "poly" was whatever the problem indicated it was, a bunch of floats.
i think i assumed that "i" would take the indice value of the tuple, rather than the actual value at that indice.
what you are doing is perhaps picking up the index and multiplying it by x and the multiplying this product further by the power of x
the wrong part is that the value of poly[i] i.e eg 3x2 so in your solution even 3 is getting raised to the power
perhaps you should do something like poly[i] * (x**i)
well i don`t explain perfectly anything unclear please do ask...
i hope this helps!