Create an m-script file to plot the following functions separately

I am trying to plot the following function in Matlab. y=x^3+2x^2-6x with x having bounds of 0 to 30 (0:30)

I am using the following code and below is the error message I am receiving x=0:30; >> plot(x,'x.^3+2x.^2-6x'),grid Error using plot Error in color/linetype argument

If someone could please help me to fix this error and/or see the error in my function I would appreciate it.

Answer 1

[Azzi Abdelmalek]

x=0:30;
plot(x,x.^3+2*x.^2-6*x)
grid
xlabel('x')
ylabel('y')
title('y=x.^3+2*x.^2-6*x')

For more details look at

doc plot

[KayLynn]

Thank you. So for y=10sin(2x-3).... it would be 10*sin(2*x-3)?????

[Azzi Abdelmalek]

Exact

Answer 2

[Rohit Naik]

X = [-10:10]; Y = tan^-1(X) Plot(X,Y)

[Walter Roberson]

MATLAB does not support that notation for arctangent