函數(shù)abs的作用是 函數(shù)Abs(X)是什么?
函數(shù)Abs(X)是什么?ABS函數(shù)是什么意思?ABS(x)在MATLAB中是去除絕對(duì)值的函數(shù),例如:x=-1.23 ABS(x)ans 1.23以上是-1.23的絕對(duì)值。另外,MATLAB中還有一些內(nèi)
函數(shù)Abs(X)是什么?
ABS函數(shù)是什么意思?
ABS(x)在MATLAB中是去除絕對(duì)值的函數(shù),例如:x=-1.23 ABS(x)ans 1.23以上是-1.23的絕對(duì)值。另外,MATLAB中還有一些內(nèi)置函數(shù),可以直接調(diào)用函數(shù)名函數(shù)描述ACOS(x)計(jì)算arccos(x)的值asin(x)計(jì)算arccos(x)的值atan(x)計(jì)算arccan(x)的值atan2(y,x) 計(jì)算arctan(Y/x)的值cos(x)計(jì)算余弦exp(x)計(jì)算e mod(x)的x次方,y) 計(jì)算余數(shù)sqrt(x)計(jì)算平方根ceil(x)舍入到正無(wú)窮大fix(x)舍入到零floor(x)舍入到負(fù)無(wú)窮大char(x)將數(shù)字轉(zhuǎn)換為字符(數(shù)字范圍0-255)double(x)將字符轉(zhuǎn)換為數(shù)字int2str(x)將整數(shù)轉(zhuǎn)換為字符num2str(x)將十進(jìn)制數(shù)轉(zhuǎn)換為字符str2num(x)將數(shù)字轉(zhuǎn)換為數(shù)字