Expert: George Moustris - 5/10/2007

Question
Can matlad differentiate a normal distribution of an inverse normal distribution?
Something like:
d/dx(N(a*invN(x) + invN(p)))
N(x) is normal distribution
invN is inverse normal distribution
If not, how would i do it in matlab?

Answer
Hi Jo,

by "differentiation" i assume that you mean symbolic differentiation and not arithmetic. To do what you ask you must define, in symbolic form, the function you want to differentiate and then you apply the symbolic derivative operator ("diff(f,x))", where f(x) is the function you describe.
If you want to perform symbolic math operations i would rather recommend Mathcad since it's easier than Matlab in symbolic math.

Best
G.