how to create a triangle wave in matlab?

Question

Ningyi Liu 2017-11-9

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https://ww2.mathworks.cn/matlabcentral/answers/365932-how-to-create-a-triangle-wave-in-matlab

回答： Simon Leary 2022-4-11

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How do I plot "a triangle wave with frequency of 1 kHz that's 3 V peak-to-peak with a minimum voltage of 0 volts" in matlab?

I attached the excel graphs that is my simulation plot and measured plot, the theoretical graph created from Matlab should look similar to it.

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Answer 1

Simon Leary 2022-4-11

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https://ww2.mathworks.cn/matlabcentral/answers/365932-how-to-create-a-triangle-wave-in-matlab#answer_940555

在 MATLAB Online 中打开

function output = triangle(t, period, amplitude)
    % sawtooth uses amplitude of time array to get period
    % multiply t by 2pi, divide by your desired period
    t1 = t*2*pi/period;
    % 0.5 is the fraction of the period where sawtooth peaks, I think
    output = sawtooth(t1, 0.5);
    % default range of sawtooth is -1 to 1, add 1 to get 0 to 2
    % then divide by 1 to get 0 to 1
    output = (output + 1)/2;
    output = output*amplitude;
end

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Answer 2

Image Analyst 2017-11-9

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https://ww2.mathworks.cn/matlabcentral/answers/365932-how-to-create-a-triangle-wave-in-matlab#answer_290102

See https://www.mathworks.com/help/signal/ref/sawtooth.html?s_tid=answers_rc2-1_p4_MLT

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Answer 3

Eyad Samaan 2018-3-19

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https://ww2.mathworks.cn/matlabcentral/answers/365932-how-to-create-a-triangle-wave-in-matlab#answer_310715

V=10; f0=1; w0=2*pi*f0; T=1/f0; T1=T/2; T2=1-T/2; f1=1/T1; f2=1/T2; d=1/2; dT=T/512; t1=0:dT: d* T-dT ; t2=d*T:dT: T-dT; t=[t1 t2]; figure; v1= V * triangle ( 2* pi* f1*t1 ); v2=-V*triangle (2*pi*f2*t2);