how can i pick one value from 3d matrix CD(49*1*180) and CL(49*1*180) from tumbling_aerodyn_new.mat

i would like to pick values from the CDgrid(49*1*180),CLgrid(49*1*180) which is in 3d matrix to solve the CD(mach,alpha) and CL(mach,alpha) where 1:49 is mach numbers and 1:180 are alpha values. I want to compare my mach number with the mach numbers in the CD, CL files and alphas with CD, CL to get final CD and CL with respect to mach and alpha to solve L=0.5*rho*V^2*CL*S/m and D=0.5*rho*V^2*CD*S/m with ode45 i have mach vector=[1:49] and i have mach from atmosisa M=V/a, so i have to machs to get one mach and i have alpha vector=[1:180] and i have alpha =theta-gamma; so help me solve this problem