function [H,W]=dtft(h,N) %定义一个dtft函数 %DTFT caculate DTFT at N equally spaced frequencies %Usage: %[H,W]=dtft(h,N) %h:finite-length input vector, whose length is L %N:number of frequencies for evaluation over [-pi,pi) %==>constraint:N>=L %H:DTFT values (complex) %W:(...
The colon operator also allows you to create an equally spaced vector of values using the more general formstart:step:end. B = 0:10:100 B =1×110 10 20 30 40 50 60 70 80 90 100 If you omit the middle step, as instart:end, MATLAB uses the default step value of1. ...
在-pi 到 2*pi 之间等间隔产生121个点作为时间轴,产生一个幅值为1.15的周期方波,同时在同一幅图上画一个正弦波,参数与方波一致; %evaluate square(2*t) at 121 equally spaced numbers between -pi and 2*pi . %Change the amplitude to 1.15 . Plot the wave and overlay a sine with the same paramet...
Create a sequence of equally-spaced datetime values, and find the time differences between them. t1 = datetime('now'); t2 = t1 + minutes(5); t = t1:minutes(1.5):t2 t =1×4 datetime01-Feb-2025 09:02:29 01-Feb-2025 09:03:59 01-Feb-2025 09:05:29 01-Feb-2025 09:06:59 ...
Create a sequence of equally-spaced datetime values, and find the time differences between them. t1 = datetime('now'); t2 = t1 + minutes(5); t = t1:minutes(1.5):t2 t =1x4 datetime23-Jan-2025 01:32:15 23-Jan-2025 01:33:45 23-Jan-2025 01:35:15 23-Jan-2025 01:36:45 ...
MATLAB+中的常用操作符 MATLAB中的常用操作符 其实这些是MATLAB帮助文件中的内容，可以利用help命令知道的。Arithmetic operators.plus Plus+ uplus Unary plus+ minus Minus uminus Unary minus mtimes Matrix multiply* times Array multiply.* mpower Matrix power^ power Array power.^ mldivide Backslash or left ...
The colon operator also allows you to create an equally spaced vector of values using the more general formstart:step:end. B = 0:10:100 B = 0 10 20 30 40 50 60 70 80 90 100 If you omit the middlestep, as instart:end, MATLAB uses the default step value of1. ...
Create a stairstep plot of two cosine waves evaluated at equally spaced values between 0 and 4π. Specify the set of x-values for the plot. Get X = linspace(0,4*pi,50)'; Y = [0.5*cos(X), 2*cos(X)]; figure stairs(X,Y) The first vector input, X, determines the x-axis...
% out - structure array that contains the following fields: % dd - unfiltered data densities at (x,y) % ddf - filtered data densities at (x,y) % radius - area used in 'circles' and 'squares' % methods to calculate densities
MATLAB第二讲数值数组及向量化运算(2 姓名：马凯 邮箱：matlab2011@163.com QQ : 9068005