NumToHex ( integer )

Convert Base 10 number to Base 16

Average rating: 4.1 (42 votes) Log in to vote

Jeremiah Small - Show more from this author
Soliant Consulting, Inc.
https://www.soliantconsulting.com

Sample input:

NumToHex ( 3440 )

Sample output:

D70

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

// 2009-11-04 jsmall
// updated to be FMP10 compatible 
// (had a name conflict with Char function)
// refactored as NumToHex, formerly DecToHex
// (the function only actually supports integers, 
// not "decimal" fractions as the old name implied)

Let ( [
_bit = Mod ( integer ; 16 ) ;
_alpha = "0123456789ABCDEF" ;
_char = Middle ( _alpha ; _bit + 1 ; 1 ) ;
_next = Div ( integer ; 16 )
] ;

Case ( 
_next ;
NumToHex ( _next )
)//end Case
& _char
)//end Let

To convert a base 10 number to hexadecimal you repeatedly divide the number by 16, each time recording the remainder. At the end of this line up all of the remainders and reverse their order. As you know, hexadecimal is base 16, and hence makes use of 6 extra symbols (ABCDEF). A = 10, and F, 15. 16 is written as 10. When converting to any base above 10 a remainder equal to or greater than 10 has to be written using the correct symbol.

Similar to

Example:
Converting 3440 to hexadecimal

3440/16 = 215 (Mod = 0dec or 0hex)
215/16 = 13 (Mod = 7dec or 7hex)
13/16 = 0 (Mod = 13dec or Dhex)

In reverse order, the hex reads D70

Hence, 3440dec = D70hex

Comments

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

NumToHex ( integer )

Comments

Support this website.

Support this website.