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# help with integrating formula

Posts: 2Member
hi,
Im tying to programme the formula which is attatched but im not sure how to do the integration part.
This is my attemp so far:

% Constants
a1 = 2.6;
a2 = 3;
r1 = 3.6;
r2 = 4;
d = 0.4;
h1 = 0.349;
h2 = 0.349;
u0 = 4.0*pi*1.0e-7;

k = 0:5000000

%S(kr2,kr1)
S1 = (besselj(0,k*r2)-besselj(0,k*r1))/k

%S(ka2,ka1)
S2 = (besselj(0,k*a2)- besselj(0,k*a1))/k

%Q
Q = (2/k)*(h1+(exp(-k*h1)-1)/k)

%first part before integration
F = (u0*pi)/(h1*h2*log(r2/r1)*log(a2/a1))

T = (S1.*(S2.*Q.*exp(-k*0)))