Creating a function similar to a sawtooth function

Question

John Carroll 2022-10-26

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https://ww2.mathworks.cn/matlabcentral/answers/1836603-creating-a-function-similar-to-a-sawtooth-function

评论： John Carroll 2022-10-27

Hello

I am trying to create a function similar to the sawtooth function. I would like a simple set of commands that would create a 1xn matrix of values based on the input of a maximum number and step size. For example I'd like to give the input of 20 for the maximum and a step size of 5 and receiver a matrix of the following form.

[0 5 10 15 20 15 10 5 0 -5 -10 -15 -20 -15 -10 -5 0]

The sawtooth function seems to create something similar but I was hoping someone could seggest another way that could produce the matrix as I am showing.

Thank you

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Answer 1

Voss 2022-10-26

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https://ww2.mathworks.cn/matlabcentral/answers/1836603-creating-a-function-similar-to-a-sawtooth-function#answer_1084603

在 MATLAB Online 中打开

n = 17;
max_val = 20;
step_val = 5;
m = max_val/step_val;
temp = step_val*[0:m m-1:-1:-m -m+1:-1];
result = repmat(temp,1,ceil(n/numel(temp)));
result = result(1:n)
result = 1×17
     0     5    10    15    20    15    10     5     0    -5   -10   -15   -20   -15   -10    -5     0