MATLAB: Matlab how can I make this inequality

Question

I have an exercise that requires me to plot a function of y=x^2 from 0<=x<pi/2 what would be the right approach for this?

Answer 1

There are different ways to display a graph as you are asking, one of the most basic ones being

1. define the base vector

step=0.01
x=[0:step:pi/2]

2. define the function

y=x.^2;

3. display

plot(x,y)
grid on

comments:

• note the element wise operation implemented with the dot preceding the operator with '.^'
• plot has many optional fields, check MATLAB help for plot
• the smaller the step the higher the resolution
• grid on is also optional
• the figure window has a marker that can be used for quick checks
• ; at the end of a command line prevents MATLAB command window showing execution

if you find these lines useful would you please mark my answer as Accepted Answer?

To any other reader, if you find this answer of any help please click on the thumbs-up vote link,

thanks in advance for time and attention

John BG

<mailto:jgb2012@sky.com jgb2012@sky.com>