Two-dimensional sinusoid

\[\operatorname{Re}\!\left\{A e^{i\phi}e^{ikx}e^{i\ell y}\right\} =A\cos(kx+\ell y+\phi)\]

Amplitude, \(A\)1.00

Phase, \(\phi\)0.00π

−π+π

Frequency, \(k\)+2.00 rad/u

−20+20 rad/u

Frequency, \(\ell\)+1.00 rad/u

−20+20 rad/u

\(\operatorname{Re}\{z(x,y)\}\)

cos(2.00x + 1.00y)

−1.00 0 +1.00