User Manual

86 Alphabetical Listing
log()
/s keys
log(Value1[,Value2]) ⇒ value
log(List1[,Value2]) ⇒ list
Returns the base-Value2 logarithm of the
first argument.
Note: See also Log template, page 2.
For a list, returns the base-Value2
logarithm of the elements.
If the second argument is omitted, 10 is
used as the base.
If complex formatmode is Real:
If complex formatmode is Rectangular:
log(squareMatrix1[,Value]) ⇒
squareMatrix
Returns the matrix base-Value logarithm of
squareMatrix1. This is not the same as
calculating the base-Value logarithm of
each element. For information about the
calculation method, refer to cos().
squareMatrix1 must be diagonalizable. The
result always contains floating-point
numbers.
If the base argument is omitted, 10 is used
as base.
In Radian angle mode and Rectangular
complex format:
To see the entire result, press £ and then
use ¡and¢ to move the cursor.
Logistic
Catalog >
Logistic X, Y[, [Freq] [, Category, Include]]
Computes the logistic regression y = (c/
(1+a•e
-bx
)) on lists X and Y with frequency
Freq. A summary of results is stored in the
stat.results variable. (See page 145.)
All the lists must have equal dimension
except for Include.