The MATH Menu

To display the MATH menu, press @m(the shifted %key). Like the other mathematics functions, these functions operate on only the last number in the display.

Table 2-2. The MATH Menu Labels

Menu Label

Description

H!Common (base 10) logarithm of a positive number.

2#Common (base 10) antilogarithm; calculates 10x.

3Natural (base e) logarithm of a positive number.

I!Natural antilogarithm; calculates ex.

4Factorial.

5Inserts the value for π into the display.

Keys:Display: Description:

2.5 @m "

Calculates 102.5.

2%#'&$%"

4

4

"

$+&(("

Calculates the factorial of 4.

e

"

Exits MATH menu.

You can access the MATH menu when another menu is displayed. For instance, while using SUM you might want to use a MATH function. Just press @m, then perform the calculation. Pressing ereturns you to SUM. The MATH result remains in the calculator line. Remember, however, that you must exit MATH before you resume using SUM.

42 2: Arithmetic

File name : 17BII-Plus-Manual-E-PRINT-030709

Print data : 2003/7/11