                  Numerical utilities
                  -------------------

Prgrams in this directory provide various numerical utilities.

=========================================================================

Files as of 22-Feb-94

 
Directory:  /disk2/cds/soft/test/util/numerical/
 
BIN2DEC           - Convert binary representation to decimal integer.
BIN2HEX           - Convert binary representation to hexadecimal.
BOX_AV()          - Produce a box average of an array.
BYTESWAP()        - Swaps the bytes in an integer (as a function).
CDS_GAUSS()       - Fits Gaussian with constant, linear or quadratic background.
DEC2BIN           - Convert integer decimal number to binary representation.
DEC2HEX           - Convert a non-negative decimal integer to a hex string.
HEX2BIN           - Convert hexadecimal number to binary representation.
HEX2DEC           - Convert hexadecimal representation to decimal integer.
MODE_VAL()        - Returns the modal value of an array.
N_DIMENSIONS()    - Returns number of dimensions of a variable.
NINT()            - Returns the nearest integers to the input values.
NUM_CHK()         - Check if input is valid number.
PERIODOGRAM()     - Calculate periodogram of (unevenly spaced) time series.
REM_COM()         - Finds elements unique to second vector.
ROUND_OFF()       - To round a number to a specified accuracy
SAME_DATA()       - Check if two variables are identical.
SHORTHEX()        - Converts a short int value into fixed hex string format.
SIZEOF()          - Calculates the size of an IDL variable
STRNUMBER()       - Function to determine if a string is a valid numeric value.
TIME_AVERAGE()    - To form a time average of a set of time series data.
UNSIGN()          - Produces longword equivalent of an unsigned 16-bit integer.
VALID_NUM()       - Check if a string is a valid number representation.
