exp

Purpose

Calculates the exponential function.

Format

y = exp(x)
Parameters:x (NxK matrix or N-dimensional array) – The values used to compute \(e^x\).
Returns:y (NxK matrix or N-dimensional array) – contains \(e^x\), the base of natural logs raised to the powers given by the elements of x.

Examples

x = eye(3);
y = exp(x);
    1.000000  0.000000  0.000000
x = 0.000000  1.000000  0.000000
    0.000000  0.000000  1.000000
    2.718282  1.000000  1.000000
y = 1.000000  2.718282  1.000000
    1.000000  1.000000  2.718282

This example creates a 3x3 identity matrix and computes the exponential function for each one of its elements.

Note

exp(1) returns e, the base of natural logs.

See also

Functions ln()