Matlab基本函数-floor函数

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1、floor函数：朝负无穷大方向取整

2、用法说明：

y = floor(x) 函数将x中元素取整，值y为不大于本身的最小整数。对于复数，分别对实部和虚部取整

3、用法举例

>> x = [3+4i 6-7i 9+11i 1-4i 3.4-4.5i 90.67-123i]x =   1.0e+02 *  Columns 1 through 5   0.0300 + 0.0400i   0.0600 - 0.0700i   0.0900 + 0.1100i   0.0100 - 0.0400i   0.0340 - 0.0450i  Column 6   0.9067 - 1.2300i>> y = floor(x)y =   1.0e+02 *  Columns 1 through 5   0.0300 + 0.0400i   0.0600 - 0.0700i   0.0900 + 0.1100i   0.0100 - 0.0400i   0.0300 - 0.0500i  Column 6   0.9000 - 1.2300i

4、附录

>> help floor floor  Round towards minus infinity.    floor(X) rounds the elements of X to the nearest integers    towards minus infinity.     See also round, ceil, fix.    Overloaded methods:       codistributed/floor       gpuArray/floor    Reference page in Help browser       doc floor