exp

exp(x: array, /) → array

Calculates an implementation-dependent approximation to the exponential function, having domain [-infinity, +infinity] and codomain [+0, +infinity], for each element x_i of the input array x (e raised to the power of x_i, where e is the base of the natural logarithm).

Special cases

For floating-point operands,

  • If x_i is NaN, the result is NaN.

  • If x_i is +0, the result is 1.

  • If x_i is -0, the result is 1.

  • If x_i is +infinity, the result is +infinity.

  • If x_i is -infinity, the result is +0.

Parameters:

x (array) – input array. Should have a floating-point data type.

Returns:

out (array) – an array containing the evaluated exponential function result for each element in x. The returned array must have a floating-point data type determined by Type Promotion Rules.