Introduction Numbers/Bit Manipulation
 BITTOC()     Converts position-dependent bits into characters
 CELSIUS()    Converts a Fahrenheit temperature value into Celsius
 CLEARBIT()   Clears one or more bits within a number to zero
 CTOBIT()     Converts a character string into a bit pattern
 CTOF()       Converts a special 8-byte string into a floating point number
 CTON()       Converts a numeric string into a different base
 EXPONENT()   Determines the exponent of a floating point number (base 2)
 FAHRENHEIT() Converts a temperature value from Celsius into Fahrenheit
 FTOC()       Converts a floating point number into a special 8-byte string
 INFINITY()   Creates the largest number possible (21023)
 INTNEG()     Converts an unsigned integer into a signed integer
 INTPOS()     Converts a signed integer into an unsigned integer
 ISBIT()      Tests the bits in a number
 LTON()       Converts a logical value into a numeric value
 MANTISSA()   Determines the mantissa of a floating point number (base2)
 NTOC()       Converts numbers in a digit string into a different number base
 NUMAND()     Performs a 16-bit "AND" of a list of numbers
 NUMCOUNT()   Uses the internal CA-Clipper Tools counter
 NUMHIGH()    Returns the higher value byte in a 16-bit number
 NUMLOW()     Returns the lower value byte in a 16-bit number
 NUMMIRR()    Mirrors 8-bit or 16-bit values
 NUMNOT()     Performs a 16-bit "NOT" of a number
 NUMOR()      Performs a 16-bit "OR" of a list of numbers
 NUMROL()     Performs a 16-bit left rotation of a number
 NUMXOR()     Performs a 16-bit "XOR" of two numbers
 RAND()       Generates random numbers
 RANDOM()     Generates random numbers
 SETBIT()     Sets one or more bits in a number