Apple iWork '09 - Manual (Page 74)

Usage Notes
This function returns a number value and can properly be used in a formula Â
containing other number values. Some other spreadsheet applications return
a string value.
Examples
=BASETONUM(”3f”, 16) returns 63.
=BASETONUM(1000100, 2) returns 68.
=BASETONUM(”7279”, 8) returns an error, since the digit “9” is not valid in base 8.
Related Topics
For related functions and additional information, see:
“BIN2DEC” on page 76
“HEX2DEC” on page 90
“NUMTOBASE” on page 92
“OCT2DEC” on page 94
“Listing of Engineering Functions” on page 72
“Value Types” on page 36
“The Elements of Formulas” on page 15
“Using the Keyboard and Mouse to Create and Edit Formulas” on page 26
“Pasting from Examples in Help” on page 41
BESSELJ
The BESSELJ function returns the integer Bessel function J
n
(x).
BESSELJ(any-x-value, n-value)
 any-x-value: The x value at which you want to evaluate the function. any-x-value is
a number value.
 n-value: The order of the function. n-value is a number value and must be greater
than or equal to 0. If n-value has a decimal portion, it is ignored.
Examples
=BESSELJ(25, 3) returns 0.108343081061509.
=BESSELJ(25, 3.9) also returns 0.108343081061509, since any decimal portion of n-value is ignored.
=BESSELJ(-25, 3) returns -0.108343081061509.
74 Chapter 5 Engineering Functions