Is this right?

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Levente Gáti
Levente Gáti 2020-12-21
编辑： James Tursa 2020-12-21
Okay so my task is:
I have to make a script in matlab, which gives back the product of the first 10 element.(of this equation)
fn=((n^2)+n)/((n^3)+n!-4)
Is this right?
y=1
for i=1:10
y=y*(((i*i)+i)/((i*i*i)+(factorial(i))-4))
end
Thanks for helping, it means a lot.
  2 个评论
James Tursa
James Tursa 2020-12-21
Your equation says -5 but you have coded -4.
Levente Gáti
Levente Gáti 2020-12-21
Sorry for the misstyping

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采纳的回答

Sean de Wolski
Sean de Wolski 2020-12-21
-4 v -5?

更多回答（1 个）

Image Analyst
Image Analyst 2020-12-21
I think you need to subtract 5 instead of 4, and I think your for loop needs to start at 2 since you already computed the first term with y=1. Compare your results with the vectorized version:
n = 1 : 10;
fn = ((n.^2)+n) ./ ((n.^3) + factorial(n) - 5)
result = prod(fn)
  1 个评论
James Tursa
James Tursa 2020-12-21
编辑：James Tursa 2020-12-21
"... I think your for loop needs to start at 2 ..."
The loop indexing needs to start at 1 as written unless you know that the first term is 1 exactly.

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