函数取整，有如下四种函数
floor():向下取整ceil():向上取整round():取最近整数fix():向0取整二、例程 1、floor():向下取整 disp('floor-向下取整');A1=floor(1.2)A2=floor(2.5)A3=floor(-2.5) 2、ceil():向上取整 disp('ceil-向上取整');B1=ceil(1.2)B2=ceil(2.5)B3=ceil(-2.5) 3、round():取最近整数 disp('round-取最近整数');C1=round(1.2)C2=round(2.5)C3=round(-2.5) 4、fix():向0取整 disp('round-取最近整数');C1=round(1.2)C2=round(2.5)C3=round(-2.5) 5、整合对比 %_______________________disp('floor-向下取整');A1=floor(1.2)A2=floor(2.5)A3=floor(-2.5)disp('_______________________');%_______________________disp('ceil-向上取整');B1=ceil(1.2)B2=ceil(2.5)B3=ceil(-2.5)disp('_______________________');%_______________________disp('round-取最近整数');C1=round(1.2)C2=round(2.5)C3=round(-2.5)disp('_______________________');%_______________________disp('fix-向0取整');D1=fix(1.2)D2=fix(2.5)D3=fix(-2.5)disp('_______________________');%_______________________效果如下：