I want to multiply 2 arrays

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summyia qamar
summyia qamar 2016-12-14
编辑： Stephen23 2016-12-14
A=
[4951;
5782;
9553;10384]
B=[2;2.5;2.8;3]
C=A.*B or bsxfun(@times,A,B)
the result is
1.0e+04 *
0.9902
1.4455
2.6748
3.1152
why is this so?

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回答（2 个）

John D'Errico
John D'Errico 2016-12-14
编辑：John D'Errico 2016-12-14
Oh. That is not the product of those numbers? Seems right to me, as long as you don't miss that factor of 1e4 out front.
What did you expect?
doc format
  2 个评论
summyia qamar
summyia qamar 2016-12-14
how to get the exact numbers?without this 1e4 format
Guillaume
Guillaume 2016-12-14
As per John's anwser:
doc format
Or if it's really that hard to type that into matlab, click on this link
Personally, I use format longg

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David Barry
David Barry 2016-12-14
I don't see the problem. What are you expecting the answer to be?
  • 4951 * 2 = 9902
  • 5782 * 2.5 = 14455
  • etc...
  2 个评论
summyia qamar
summyia qamar 2016-12-14
the exact values..correct decimal place
David Barry
David Barry 2016-12-14
MATLAB has given you the exact values. Do you not understand scientific notation? I suggest you Google it if not. What exactly do you mean by "correct decimal place".

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