JacobiAmplitude[u, m] gives the amplitude am(u \[VerticalSeparator] m) for Jacobi elliptic functions.
JacobiCD[u, m] gives the Jacobi elliptic function cd(u | m).
JacobiCN[u, m] gives the Jacobi elliptic function cn(u | m).
JacobiCS[u, m] gives the Jacobi elliptic function cs(u | m).
JacobiDC[u, m] gives the Jacobi elliptic function dc(u | m).
JacobiDN[u, m] gives the Jacobi elliptic function dn(u | m).
JacobiDS[u, m] gives the Jacobi elliptic function ds(u | m).
JacobiNC[u, m] gives the Jacobi elliptic function nc(u | m).
JacobiND[u, m] gives the Jacobi elliptic function nd(u | m).
JacobiNS[u, m] gives the Jacobi elliptic function ns(u | m).