How do I plot a cosine sinusoidal function in MATLAB?

Please, I need a detailed step-by-step guideline on how to plot this sinusoidal function in MATLAB?

x(t) =10cos[2π(440)t-0.4π]

Thank you.

[John D'Errico]

Um, what you want is for someone to do your homework.

What you truly need is to learn MATLAB. That you will do by reading the help, the tutorials, and by actually using the language.

This is a simple problem. So learn what a function handle does, and how to create one. Along the way, you may also need to learn MATLAB syntax, as what you have written is not valid syntax. Then learn to use ezplot.

help function_handle
help ezplot

Finally, you do need to consider the region you will plot that function over, as if you are not careful, a sine wave with that rather high frequency will look a bit boring on your plot.

[Steven Lord]

It's even simpler than you make it out to be, John. There's no need to bring function handles into this.

[John D'Errico]

Very true.