Problem 2661. Change Vector Value

Created by Abdullah Caliskan

Solve Later

Change the element of the vector with respect to the element of the direction vector

If the element of the direction vector is 2, then the new element of the vector is two times the corresponding element in the vector.

If the element of the direction vector is 1, then the new element of the vector is two times the corresponding element in the vector minus one.

Attention: 'if' can not be used

Example

 direction vector d = [1  2  2  2  1  2  1  2]
 vector =             [1  2  3  4  5  6  7  8]
 new_vector =         [1  4  6  8  9 12 13 16]

Solve

Solution Stats

Last solution submitted on Oct 12, 2019

Last 200 Solutions

Problem Comments

Solution Comments

Solution 522958

3 Comments

3 Comments

James on 6 Nov 2014

Interesting. [d==1] has a Cody size one greater than (d==1). Any thoughts as to why?

J.R.! Menzinger on 7 Nov 2014

The brackets are the operation "conatenate elements" so it is interpreted as an extra operation. The expression [1:10] has the same meaning (result) as (1:10) but in the first case you have done an extra operation (not necessary in this case). On the same way you can use [1 5] but if you use (1 5) you become an error because there is no concatenation with simple parenthesis.

James on 7 Nov 2014

Nice. Thanks for the explanation, J.R.

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basic matlab vector