How to perfrorm this task using for loop and find function?

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Patrick
Patrick 2012-11-1
Hi, I'm new to MATLAB but there is a task I have to do but I don't know how to apporach this. I'd be grateful if you could help me.
A=[ 3, 5, -4; -8,-1, 33; -17, 6, -9]
Can anyone please explain to me how to to write a program that will create the array B by computing the natural log of the corresponding elements of an array A if the values are greater than one. The remaining elemts of B can be obtained by adding -17 to each of the corresponding elements of A.
Use a for loop with conditional statement and find function (I have to do it in two different ways)
I'll be glad if you could help me, Thanks

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回答（1 个）

Matt Kindig
Matt Kindig 2012-11-1
Since this is homework, we won't provide the code, but have you looked at the help for these two functions? At the Matlab prompt, type the following:
doc find
doc for
To find the natural log, just use the log() function:
doc log

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