How to plot stairstep like graph in VBA

[calvindon0820]

Hi guys,

I am wondering how to plot a stairstep-like graph in VBA automatically. In MATLAB, I got some function called 'stairs' that could help me with it. But I dont know if there exists any similar function in VBA as well.

For example, I got a function like:

num = 10*cos(t).*(t).*(t) + 1;
denom = (t.^4 + 5*t.^2 + t.^3 + t + 3); 
x = num ./ denom;
stairs(t,x,'r')
 

which works in MATLAB, how could I translate it into VBA?

Truly appreciate your help!