how can i write this lissajous function in matlab????
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hi all
I knew that my question is so silly, but I am new I matlab area and I need help:
I have this lissajous function:
x (t)=Asin(at+d)
y (t)=Bsin(bt)
where t = from 0 to 2pi, what I need is to know how I can write this function in an m-file which take three scalars a, b, and d , and a vector t as its arguments and returns two vectors x(t) and y (t) also A=B=1
thanks for any one help
mari
regards
采纳的回答
Andrei Bobrov
2012-8-8
编辑：Andrei Bobrov
2012-8-8
your_lissajous = @(t,a,b,d)[sin(a*t(:)+d), sin(b*t(:))];
eg of use function your_lissajous
xy = your_lissajous(0:pi/100:2*pi,7,8,0);
plot(xy(:,1),xy(:,2))
2 个评论
mari gaji
2012-8-9
Walter Roberson
2012-8-9
With the (valid) definition that Andrei gave, you would only be able to invoke "your_lissajous" from within a function that had the assignment statement given. If you need to define it for use in all routines, you will need to store the following in your_lissajous.m
function xy = your_lissajous(t, a, b, d)
xy = [sin(a*t(:)+d), sin(b*t(:))];
end
更多回答（1 个）
Walter Roberson
2012-8-8
The function heading would be
function [x, y] = my_lissajous(a, b, d, t)
2 个评论
mari gaji
2012-8-8
Walter Roberson
2012-8-9
Remember that MATLAB is case sensitive, so "A" is not the same as "a". It does not matter which of the two you use, but you must be consistent.
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