rot90 (MATLAB Function Reference)

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將矩陣旋轉 90°

Syntax

B = rot90(A)
B = rot90(A,k)

Description

B = rot90(A) 將矩陣 A 順時針方向旋轉 90 度。

B = rot90(A,k) 將矩陣 A 順時針方向旋轉 k*90 度。k 為整數。

Examples

矩陣

X =
    1    2    3
    4    5    6
    7    8    9

旋轉 90 度後

Y = rot90(X)
Y =
    3    6    9
    2    5    8
    1    4    7

See Also

flipdim, fliplr, flipud

rose rotate