How can I increment a vector by squaring?
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I've been asked to write and display a vector" v = [1ˆ2, 3ˆ2, 5ˆ2, ..., (2n+1)ˆ2]". So how would I write the increment for that?
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James Tursa
2017-10-3
What have you done so far? What specific problems are you having with your code?
回答（2 个）
Image Analyst
2017-10-3
To square a vector element by element, you use .^2:
v = v .^ 2;
And constructing a v of [1,3,5,...] is trivial. Not sure what that has to do with incrementing a vector. Squaring is not incrementing by the normal definition of incrementing, where each element has the same number added to it, like v = v + increment.
Darren Sill
2017-10-3
If you have your vector already defined, you can use the dot operator to square each term individually. I.e.
x = [1 2 3 4];
x.^2
Will return the vector [1 4 9 16]. Is that what you are asking?
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2017-10-3
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