# Homework Help: Interpolation in matlab

1. Oct 25, 2009

### sara_87

1. The problem statement, all variables and given/known data

If i have an interpolation formula, say:

$$y(t_i)=3+h\sum^i_{j=1}jy(t_j)$$

where i=0 to n
h=(a+b)/n
ti=i*h
and
when i=0, we have: y(t0)=0.

How would i write a code to find y(ti)?

2. Relevant equations

3. The attempt at a solution

function y=examp(a,b,n)
h=(a+b)/n
for i=1:n+1
t(i)=(i-1)*h
for j=1:i+1

and now im stuck because i dont know how write a code that uses the previous value of y to compute the next value of y.

2. Nov 3, 2009