Problem 30. Sort a list of complex numbers based on far they are from the origin.

Solution 910588

Submitted on 17 Jun 2016

Size: 40
Leading solution size is 7.

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2 Comments

2 Comments

Jonathan Perry on 17 Jun 2016

I keep receiving 'Matrix dimensions must agree' when using c(c==-d)... it seems to work fine in matlab, but not on here. Any ideas?

Jan Orwat on 18 Jun 2016

Note that "c(c==-d) = d" means that c and d must be same size or d is scalar. Moreover if d is not a scalar, then all "c==-d" must be true. This code seems to work in rare case, when one value is negative real number, and the rest are positive real numbers, but I have not tested it.

Test Suite

Test	Status	Code Input and Output
1	Fail	j = sqrt(-1); z = [-4 6 3+4j 1+j 0]; zSorted_correct = [6 3+4j -4 1+j 0]; assert(isequal(complexSort(z),zSorted_correct)) Error using complexSort (line 5) Matrix dimensions must agree.
2	Fail	z = 1:10; zSorted_correct = 10:-1:1; assert(isequal(complexSort(z),zSorted_correct)) Error using complexSort (line 5) Matrix dimensions must agree.

Test

Status

Code Input and Output

Fail

j = sqrt(-1); z = [-4 6 3+4*j 1+j 0]; zSorted_correct = [6 3+4*j -4 1+j 0]; assert(isequal(complexSort(z),zSorted_correct))

Error using complexSort (line 5) Matrix dimensions must agree.

Fail

z = 1:10; zSorted_correct = 10:-1:1; assert(isequal(complexSort(z),zSorted_correct))

Error using complexSort (line 5) Matrix dimensions must agree.

Problem 30. Sort a list of complex numbers based on far they are from the origin.

Test Suite

Suggested Problems

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Problem 30. Sort a list of complex numbers based on far they are from the origin.

Test Suite

Suggested Problems

More from this Author95

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