MATLAB: Simple calculations

derivativeMATLABvectors

I would like to find dn1/dn2 in matlab and I have two vectors n1 and n2.

How can I find dn1/dn2 the simplest way? Are there any inbuilt functions for these kind of calculations?

Perhaps you're looking for

res = diff(n1)./diff(n2); %?

x = 1 : length(psdn);
x128 = linspace(x(1), x(end), 128);
p128 = spline(x, psdn, x128);
plot(x128, p128);

x = 1:10;  
x(2:end)-x(1:end-1)