how can we plot this sine wave

it was source

[madhan ravi]

How‘s this different from https://in.mathworks.com/matlabcentral/answers/457172-how-can-i-plot-a-half-sine-wave-plot-or-a-cosine-wave-which-has-a-origin-as-a-centre#answer_371209 ?

[sesha sai]

Answer 1

[Geoff Hayes]

sesha - the only difference between this and the usual sine curve is that it is "inverted". Try doing

x = -pi:0.01:pi;
y = -1 * sin(x);
plot(x,y);

and see how the -1 scalar gives you what you are looking for.

[sesha sai]

thank you so much sir