Trapezoidal Rule Approximation

We don't do homework here, but

Trapezoidal rule (differential equations) - Wikipedia, the free ...

There are more if you search for them.

I would suggest getting a different source than Wikipedia as this site is very loose on who can add/change things. Thus Wikipedia is a site that will never be referenced in any document.

Try to search google.

Are these the skills you've learned so far in making a circuit drawing and posting it, using your computer skills?

I am unable to decipher your question. Just what are you trying to solve. What will a Norton equivalent produce?

What is the 'circuit?'

Please describe in words or sketch it out, take a pic of the sketch and post it. What you've 'drawn' thus far makes no sense at all.

There are two methods of integral numerical approximations:

1) Method of inscribed trapezoid:

y(x+h)=y(x)+h*y'(x)+h^2/2*y"(x)

y'(x+h)=y'(x)+h*y"(x)

yn+1=yn+1/2*h*[f(xn,yn)+f(xn+h,yn+h*f(xn,yn)]

2)Method of circumscribed trapezoid

y(x+h)=y(x)+h*y'(x)+h^2/2*y"(x) then

y'*(x+1/2*h)=y'(x)+1/2*h*y"(x)

yn+1=yn+h*f[ xn+h/2,yn+h/2*f(xn,yn)]