jacobi_nd( z , m )
The Jacobi nd function of z and parameter m in SageMath. The reciprocal of dn:
\[ \operatorname{nd}( u | m ) = \frac{ 1 }{ \operatorname{dn}( u | m ) } \]Note that all Jacobi elliptic functions in SageMath use the parameter rather than the elliptic modulus k, which is related to the parameter by \( m = k^2 \).
Plot on the real axis:
Series expansion about the origin:
Special values:
Related functions: jacobi_dn jacobi_ns jacobi_nc
Function category: Jacobi elliptic functions sagemath-docs