graph is not smooth

Greetings,

i am getting this type of wavy graphs while they should be smooth. i will appreciate any help.

Answer 1

[Cris LaPierre]

Add more points to your line to give it a smoother appearance. Compare the 2 lines below, the first with 5 data points, and the 2nd with 41.

x1 = -2:2;
x2 = -2:0.1:2;

y1 = x1.^2;
y2 = x2.^2;

plot(x1,y1,x2,y2)
legend

[Fareeha]

thank you @@Cris LaPierre it works