reallog

Real log

Usage

reallog(A)

• A should be a numeric array.
• It returns an array containing the natural logarithm of each element of A.
• A should contain non-negative real numbers only, since reallog only returns real numbers.
• The output has the same size as A.
• Calling reallog(a) with a being complex or negative will result in error.

Example

• Natural logarithms of random numbers and some special numbers.

Input

reallog([inf 0 rand nan])

Output

ans = 1e-1 × 
 Inf     -Inf     -4.3642   NaN