lemniscateCos( z )
The lemniscate cosine of z in Math. A special case of the Jacobi delta amplitude function:
\[ \operatorname{cl}( z ) = \operatorname{dn}( z | 2 ) \]Real part on the real axis:
Imaginary part on the real axis is zero.
Real part on the imaginary axis:
Imaginary part on the imaginary axis is zero.
Real part on the complex plane:
Imaginary part on the complex plane:
Absolute value on the complex plane:
Related functions: dn lemniscateSin
Function category: elliptic functions