数学建模 | MATLAB学习 | 数组操作函数
[*]flipud函数 将矩阵上下对称翻转
https://img-blog.csdn.net/20180203090806681?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]Rot90函数 逆时针翻转90度
https://img-blog.csdn.net/20180203091028861?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]Fliplr左右对称翻转
https://img-blog.csdn.net/20180203091119896?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]Sum 函数 求和
https://img-blog.csdn.net/20180203091204385?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
sum(B) 相当于 sum(B,1)每一列相加的结果
求所有的B的数sum(sum(B)) 也可以用sum(B(:)
https://img-blog.csdn.net/20180203091316592?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
https://img-blog.csdn.net/20180203091325833?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
求矩阵某个维度的和此处sum(B,2)求行向量总和
https://img-blog.csdn.net/20180203091413232?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
创建一个4×2×3的数组，并计算沿第三维的和。
https://img-blog.csdn.net/20180203091447743?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]Max、min函数
https://img-blog.csdn.net/20180203091530227?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
取最大，或者max(A,3)元素与3做比较取最大的值
多维数组取最大值先取每一列max(B)等价于max(B,[],1)
https://img-blog.csdn.net/20180203091651819?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
按照行取最大值
https://img-blog.csdn.net/20180203091714966?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]常用数学函数sin cos tan cot asinacos atan acot
https://img-blog.csdn.net/20180203091813229?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]函数abs sqrt
https://img-blog.csdn.net/20180203091850144?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[*]常用取整函数ceil fix floor round
https://img-blog.csdn.net/20180203091931622?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
ceil网上取整（大）
https://img-blog.csdn.net/20180203092017237?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
floor往下取整
https://img-blog.csdn.net/20180203092103454?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
fix往0的方向取整
https://img-blog.csdn.net/20180203092148836?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzU5MjQyNzY=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
四舍五入取整
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