Profiling a variable within a function

I am trying to create a code that outputs the value of a funtion as it varies with time.. At the same time I want one of the variables in my function to have different values depending on the time interval being evaluated in that function. for example:

For simplification purposes, lets say my function is: f(t)= 5*t+G

I want the code to run from t=0 to t=900 [seconds]

For the first 300 second (t+0 to t<300) I want the value of G to be 10.

For the next 300 seconds (t=300 to t<600) I want g to equal 20

Finally, for the last 300 seconds (t=600 to t=900) I want G to equal 30.

Then I want the code to output a plot of f(t) vs. T

How can I do this?

Answer 1

[TADA]

G = @(t) (floor(t/300)+1)*10;
f = @(t) 5*t + G(t);
t = 1:899;
plot(t,f(t));

[David Cirino]

Can you explain the first line of code? Please

[TADA]

The Function G Is a Partitioned Function Which Gives A Value Which Increments By 10 For Every Interval Of 300 (IE 0-299, 300-599, 600-899)

To Achieve This I Divided t By That Interval, Rounded Down, Added 1 (to Start From 10 And Not 0) And Multiplied By 10

[David Cirino]

Thanks!

[TADA]

Your welcome