Microsoft Office Tutorials and References
In Depth Information
LOG
Figure 10.16
Use the LN function to
estimate population
growth over time.
LOG The LOG function returns the logarithm of a number to the base you specify.
=LOG(number,base)
For example, LOG(10,3) equals 2.0959 .
The NUMBER argument is the positive real number for which you
want the logarithm.
NUMBER
The BASE argument is the base of the logarithm. If base is
omitted, it is assumed to be 10. The LOG function performs the inverse
operation of the POWER function.
BASE
LOG10
The LOG10 function returns the base-10 logarithm of a number.
=LOG10(number)
For example, LOG10(50) equals 1.6990 .
The NUMBER argument is the positive real number for which you
want the base-10 logarithm. You also can use the LOG if a more
flexible approach is needed.
NUMBER
MDETERM
The MDETERM function returns the matrix determinant of an array.
=MDETERM(array)
The argument can be an actual array, such as {1,2;3,4}, or a square worksheet range, such
as A1:B2. Matrix determinants are generally used for solving systems of linear equations
where the number of equations is the same as the number of variables. For example,
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