I want to check is some number is larger than the width of a matrix. How do I access one dimension of a matrix variable instead of both dimensions?

How to get one dimension of a matrix

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I'm updating this thread with what I have found if anyone is still looking at this.
I found that...

(by Deoxal 17 Jun 2018 05:26, posts: 10)

(by Deoxal 17 Jun 2018 05:26, posts: 10)

True, but logBASE( is only available on the 84+SE with OS 2.53 MP or higher
For the 83+ you would...

(by Trenly 17 Jun 2018 04:06, posts: 7)

(by Trenly 17 Jun 2018 04:06, posts: 7)

Use a logarithm with a smaller base:
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:Prompt...

(by kg583 17 Jun 2018 03:48, posts: 7)

(by kg583 17 Jun 2018 03:48, posts: 7)

It's not meant to be that hard, but I'd like to encourage the community to put forth more...

(by Timothy Foster 17 Jun 2018 03:10, posts: 7)

(by Timothy Foster 17 Jun 2018 03:10, posts: 7)

I feel like this was supposed to be more difficult:
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:Prompt...

(by kg583 17 Jun 2018 03:04, posts: 7)

(by kg583 17 Jun 2018 03:04, posts: 7)

I forgot about the sum command ( :
Now try it without that.
EDIT: Also without cumSum, because...

(by Timothy Foster 17 Jun 2018 03:02, posts: 7)

(by Timothy Foster 17 Jun 2018 03:02, posts: 7)

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How to get one dimension of a matrix