Replace even element with zero

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Giovanni Rodriguez
Giovanni Rodriguez 2020-11-22
编辑： Stephen23 2020-11-22
Hi.
I am trying to replace even elements in my matrix with zero like below:
a = [3 5 4 1 2]
enter magical code here
a = [3 5 0 1 0]
Any help would be greatly appreciated
  1 个评论
Stephen23
Stephen23 2020-11-22
编辑：Stephen23 2020-11-22
https://web.archive.org/web/20201122054358/https://www.mathworks.com/matlabcentral/answers/656783-replace-even-element-with-zero
Original question by Giovanni Rodriguez:
Replace even element with zero
Hi.
I am trying to replace even elements in my matrix with zero like below:
a = [3 5 4 1 2]
enter magical code here
a = [3 5 0 1 0]
Any help would be greatly appreciated

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回答（1 个）

KALYAN ACHARJYA
KALYAN ACHARJYA 2020-11-22
编辑：KALYAN ACHARJYA 2020-11-22
"I am trying to replace even elements in my matrix with zero like below:"
a(2:2:end)=0
But the example is different ??
a = [3 5 0 1 0]
  2 个评论
Giovanni Rodriguez
Giovanni Rodriguez 2020-11-22
a(2:2:end)=0 makes the even indices = 0. I would like to make the even elements = 0.

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