MATLAB Function Reference

reallog

Natural logarithm for nonnegative real arrays

Syntax

• Y = reallog(X)
  

Description

Y = reallog(X) returns the natural logarithm of each element in array X. Array X must contain only nonnegative real numbers. The size of Y is the same as the size of X.

Examples

• M = magic(4)
  
  M =
      16     2     3    13
       5    11    10     8
       9     7     6    12
       4    14    15     1
  
  reallog(M)
  
  ans =
      2.7726    0.6931    1.0986    2.5649
      1.6094    2.3979    2.3026    2.0794
      2.1972    1.9459    1.7918    2.4849
      1.3863    2.6391    2.7081         0
  

See Also

log, realpow, realsqrt

real

realmax