Flip matrix matlab3/4/2024 ![]() (Equivalently, you could transpose and then reverse the rows.) In the same way, you can rotate a matrix by 270 degrees by reversing the rows and then transposing. Each of these operations is easy to implement, and by composing two operations you can obtain a rotation of the elements of the matrix.įor example, the adjacent diagram shows that rotating a matrix by 90 degrees is equivalent to reversing its columns, followed by transposing the matrix. ![]() The left-right flip is accomplished by reversing the columns of a matrix. An up-down flip is equivalent to reversing the rows of a matrix. A flip across the diagonal is the matrix transpose operation. But then I realized that rotating a matrix can be accomplished by using three simple "flip" operations: diagonal flips, up-down flips, and left-right flips. It seems like it might require writing a loop. I wasn't sure of the most efficient way to implement the function. I thought it would be fun to implement that MATLAB function in the SAS/IML language. I was reading a program written in MATLAB in which the programmer used a MATLAB function called ROT90, which rotates a matrix counterclockwise by multiples of 90 degrees. As in turning a matrix 90 degrees in a clockwise or counterclockwise direction. ![]() No, I don't mean "rotation matrices," I mean rotating matrices.
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