format——MATLAB
format:设置输出格式
对浮点性变量,缺省为format short.
format并不影响matlab如何计算和存储变量的值。对浮点型变量的计算,即单精度或双精度,按合适的浮点精度进行,而不论变量是如何显示的。对整型变量采用整型数据。整型变量总是根据不同的类(class)以合适的数据位显示,例如,3位数字显示显示int8范围 -128:127。
format short, long不影响整型变量的显示。
format long 显示15位双精度,7为单精度(scaled fixed point)
format short 显示5位(scaled fixed point format with 5 digits)
format short eng 至少5位加3位指数
format long eng 16位加至少3位指数
format hex 十六进制
format bank 2个十进制位
format + 正、负或零
format rat 有理数近似
format short 缺省显示
format long g 对双精度,显示15位定点或浮点格式,对单精度,显示7位定点或浮点格式。
format short g 5位定点或浮点格式
format short e 5位浮点格式
format long e 双精度为15位浮点格式,单精度为7为浮点格式
FORMAT Set output format.
FORMAT with no inputs sets the ouput format to the default appropriate
for the class of the variable. For float variables, the default is
FORMAT SHORT.
FORMAT does not affect how MATLAB computations are done. Computations
on float variables, namely single or double, are done in appropriate
floating point precision, no matter how those variables are displayed.
Computations on integer variables are done natively in integer. Integer
variables are always displayed to the appropriate number of digits for
the class, for example, 3 digits to display the INT8 range -128:127.
FORMAT SHORT and LONG do not affect the display of integer variables.
FORMAT may be used to switch between different output display formats
of all float variables as follows:
FORMAT SHORT Scaled fixed point format with 5 digits.
FORMAT LONG Scaled fixed point format with 15 digits for double
and 7 digits for single.
FORMAT SHORT E Floating point format with 5 digits.
FORMAT LONG E Floating point format with 15 digits for double and
7 digits for single.
FORMAT SHORT G Best of fixed or floating point format with 5 digits.
FORMAT LONG G Best of fixed or floating point format with 15 digits
for double and 7 digits for single.
FORMAT may be used to switch between different output display formats
of all numeric variables as follows:
FORMAT HEX Hexadecimal format.
FORMAT + The symbols +, - and blank are printed
for positive, negative and zero elements.
Imaginary parts are ignored.
FORMAT BANK Fixed format for dollars and cents.
FORMAT RAT Approximation by ratio of small integers.
FORMAT may be used to affect the spacing in the display of all
variables as follows:
FORMAT COMPACT Suppresses extra line-feeds.
FORMAT LOOSE Puts the extra line-feeds back in.
Example:
format short, pi, single(pi)
displays both double and single pi with 5 digits as 3.1416 while
format long, pi, single(pi)
displays pi as 3.14159265358979 and single(pi) as 3.1415927.
format, intmax('uint64'), realmax
shows these values as 18446744073709551615 and 1.7977e+308 while
format hex, intmax('uint64'), realmax
shows them as ffffffffffffffff and 7fefffffffffffff respectively.
The HEX display corresponds to the internal representation of the value
and is not the same as the hexadecimal notation in the C programming
language.
format——MATLAB的更多相关文章
- Transform the vot dataset into 4 corner format
Transform the vot dataset into 4 corner format Matlab code to change the 8 value ground truth into 4 ...
- 如何将数据转换libsvm格式文件
原文:http://blog.sina.com.cn/s/blog_5c2f929b0100qse8.html 有三种工具可用1.网上有一个xls文FormatDataLibsvm.xls具有宏命令, ...
- MATLAB读取一张RGB图片转成YUV格式
1.读入照片 控制输出的标志定义 clc;close all;clear YES = 1; NO = 0; %YES表示输出该文件,请用户配置 yuv444_out_txt = 1; yuv444_o ...
- MATLAB曲面插值及交叉验证
在离散数据的基础上补插连续函数,使得这条连续曲线通过全部给定的离散数据点.插值是离散函数逼近的重要方法,利用它可通过函数在有限个点处的取值状况,估算出函数在其他点处的近似值.曲面插值是对三维数据进行离 ...
- 【原创】开源Math.NET基础数学类库使用(03)C#解析Matlab的mat格式
本博客所有文章分类的总目录:[总目录]本博客博文总目录-实时更新 开源Math.NET基础数学类库使用总目录:[目录]开源Math.NET基础数学类库使用总目录 前言 ...
- Matlab的68个小常识
1.det(A)可以计算矩阵A的行列式值.inv(A)可以计算矩阵A的逆 2.rref(A)可以将矩阵A化为行简化阶梯梯形矩阵 3.eps是系统定义的容许误差,eps=2.2204*10-16 4.p ...
- Matlab的部分文件操作
Author:Maddock Date:2015-01-20 判断文件是否存在 infilename = [str,'\lena.jpg']; sgc_exist = exist(infilename ...
- MATLAB入门教程
MATLAB入门教程 1.MATLAB的基本知识 1-1.基本运算与函数 在MATLAB下进行基本数学运算,只需将运算式直接打入提示号(>>)之後,并按入Enter键即可.例如: ...
- matlab basic operation command
Matlab basic operation: >> 5+6 ans = 11 >> 3*4 ans = 12 >> 2^6 ans = 64 >> 1 ...
随机推荐
- linux上nagios安装完整版
监控server端的安装部署一.apache的安装下载httpd-2.2.15.tar.gz gunzip httpd-2.2.15.tar.gztar xvf httpd-2.2.15.tarcd ...
- Android Task 与 Back Stack
Tasks and Back Stack 一个应用通常包括多个 activity.每个 activity应用设计为围绕针对执行用户特定的行为和可以启动其它 activity. 一个 Activity也 ...
- 基于Bootstrap的jQuery开关按钮组合
Bootstrap是一款由Twitter推出的开源前端开发包,功能非常强大.今天我们要分享的这款jQuery开关按钮组合就是基于Bootstrap框架的,看了按钮的主题样式,也都是Bootstrap的 ...
- C#中的多态现象
面向对象的特征封装.继承和多态.Polymorphism(多态性)来源于希腊单词,指“多种形态”.多态性的一个重要特征是方法的调用是在运行时确定而不是编译时.在.NET中用于实现多态性的关键词有vir ...
- Comparison method violates its general contract
生产环境出现的错误排查,错误log如下 java.lang.IllegalArgumentException: Comparison method violates its general contr ...
- IOS开发 xcode报错之has been modified since the precompiled header was built
转载的文章 很实用 IOS开发xcode报错之has been modified since the precompiled header was built 今天做百度地图的时候第一次发现下面错误 ...
- 获取客户端的IP地址
/// <summary> /// 获取客户端的IP地址 /// </summary> /// <returns></returns> public s ...
- Java中transient有何作用?
transient关键字用来防止序列化域.如果一个引用类型被transient修饰,则其反序列化的结果是null.基本类型则为0.如果引用类型时不可序列化的类,则也应该使用transient修饰,它在 ...
- (Android学习系列)二,窗口(Activity)的生命周期
在Activity从创建到销毁的过程中需要在不同的阶段调用7个生命周期的方法这7个生命周期方法定义如下: protected void onCreate(Bundle savedInstanceSta ...
- VMware系统运维(九)VMware vSphere Client 安装
1.点击下一步 2.接受协议,下一步 3.选择安装位置,下一步 4.开始安装 5.安装完成,进行登录测试. VMware vsphere 5.1 登录名为administrator VMware ...