Last updated April 10, 2022

Status: Tags: #archivedCards/macm101/numbertheory Links: Integers

Hexadecimal

Principles

? Using A, B, C, D, E, F for 10, 11, 12, 13, 14, 15, respectively

Addition

• Carry over is only a 1, not an f
• Gotta find the remainder of f

Subtraction

• Count down the amount of the bottom
• If needed support from the next number, add 1 to what you would intuitively think
  • (f+a) - c = e

Hex to Decimal

• multiply value by 16 raised to power of position
  • Most right is 0, 2nd most right is 1

Multiplication

Shift of 2,4,8, etc?

• Turn to binary, add 0 to RHS, shift left

Examples

find the base 16 expansion of 175627 ?

Decimal to Hexa

Backlinks

1

list from Hexadecimal AND !outgoing(Hexadecimal)

References:

Created:: 2021-11-25 15:52