![]() ![]() Intuition: By observation, we see that the first column of the original matrix is the reverse of the first row of the rotated matrix, so that’s why we transpose the matrix and then reverse each row, and since we are making changes in the matrix itself space complexity gets reduced to O(1). Most often that point or rotation will be the original but it is important to under. Worked-out examples on 90° anticlockwise rotation about the origin: 1. Learn how to rotate a figure and different points about a fixed point. The new position of point M (h, k) will become M (-k, h). Space Complexity: O(N*N) to copy it into some other matrix. Approach: The approach is similar to Inplace rotate square matrix by 90 degrees Set 1. What is 90 degrees anti clockwise Rotation of point through 90° about the origin in anticlockwise direction when point M (h, k) is rotated about the origin O through 90° in anticlockwise direction. This article focuses on rotations by multiples of 9 0 90circ 9090, degrees, both positive (counterclockwise) and negative (clockwise). He also shows how angles connect to cardinal directions. ![]() So the rule that we have to apply here is. He discusses that angles are measured in degrees and that a quarter turn is equal to 90 degrees. Solution : Step 1 : Here, triangle is rotated 90° clockwise. Time Complexity: O(N*N) to linearly iterate and put it into some other matrix. If this rectangle is rotated 90° clockwise, find the vertices of the rotated figure and graph. ![]()
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