cosh

Syntax

cosh(X)

The hyperbolic cosine function.

Note:

Equivalent to NumPy's numpy.cosh, except that it only accepts a single parameter, X, and does not support parameters like out or where in numpy.cosh.
Equivalent to TA-Lib's COSH function. The difference is that DolphinDB cosh accepts scalars, vectors, and matrices as input, whereas TA-Lib COSH is primarily designed for one-dimensional NumPy arrays and does not support scalar or matrix inputs.

X is a scalar/vector/matrix.

A scalar/vector/matrix of type DOUBLE.

cosh 0 1 2;
// output: [1,1.543081,3.762196]