How to solve a single equation with 2 variables? Both of which are integers.

D=4.4010;
rowS=0.8613;
Lx=0.286;
Lz=0.198;
fnm=[134 266 408 481 785 863];
wnm=2*pi.*fnm;
wnm=sqrt(D/rowS).*((m.*pi./Lx).^2+(n.*pi./Lz).^2);

need to find m & n

Answer 1

[KSSV]

D=4.4010;
rowS=0.8613;
Lx=0.286;
Lz=0.198;
fnm=[134 266 408 481 785 863];
wnm=2*pi.*fnm;

m = 1:10 ; n = 1:10 ; 
[m,n] = meshgrid(m,n) ; 
m = m(:) ; n = n(:) ; 
wnm1=sqrt(D/rowS).*((m.*pi./Lx).^2+(n.*pi./Lz).^2);
idx = knnsearch(wnm1,wnm')

[m(idx) n(idx) wnm' wnm1(idx)]