The cosh node returns the hyperbolic cosine of the value of its child-node.

- Minimum number of child-nodes: 1
- Maximum number of child-nodes: 1
- Valid input range: no constraints, but must be in radians

The cosh node returns the hypbolic cosine of the angle (in radians) represented by its child-node's value.

value = e^{x} + e^{-x}, where x = value_{1}