Undefined function or variable 'a'?

2018 12 18
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更新时间：2018 12 18
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Hello, i am trying to export a plot into a jpeg file but i always get the following error message: Undefined function or variable 'a'.
The code is the following:
t=0:0.01:(3*pi)/2;
x =sin(1.8*pi*t);
plot(t,x,'r-.');
imwrite(a,'a1.jpg');
i also got the same error while trying to use saveas command instead. Does anyone know what am i doing wrong?

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madhan ravi
madhan ravi 2018-12-18
编辑：madhan ravi 2018-12-18

0 个投票

t=0:0.01:(3*pi)/2;
x =sin(1.8.*pi.*t);
plot(t,x,'r-.');
saveas(gcf,'example.jpg') % not imwrite

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