How to plot f: y=e^-x.sin^2x function in matlab?

Question

0 个投票

f: y=e^-x.sin^2x

Please help my computer gives errors and I don't know how to fix them.

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Answer 1

Setsuna Yuuki. 2020-11-17

编辑：Setsuna Yuuki. 2020-11-17

0 个投票

You should try this

x = 0:1e-3:10
y=exp(-x).*sin(x).^2;
plot(x,y)

Lenka Labikova 2020-11-18

thank you so much it works

Answer 2

Adam Danz 2020-11-17

编辑：Adam Danz 2020-11-17

2 个投票

Errors to fix (numbers refer to the characters above the numbers)

  f: y=e^-x.sin^2x
%  1   2   34    5

f: is not valid matlab syntax. You mean f=
if e is a variable, this is OK but if you're looking for exponent, use exp(-x)
x.sin is not valid matlab syntax. If you want multiplication, use x*sin (see next point)
if 'sin' is a variable, then sin^2 is ok but it's a horrible variable name. If you want to use the sin function, use sin(__)
2x is not valid matlab syntax. Use 2*x if x is a scalar or 2.*x if x is an array. Or, sin(x)^2