# Hex, Octal and Binary numbers

How to write Hexadecimal, Octal and Binary numbers in RedCrab Calculator

## Hex, Octal and Binary input

### Hexadecimal

• The hexadecimal numbers must be marked with a dollar symbol

• The use of small or capital letters is allowed

• Maximum 13 digits

• Excample: $1F2A or$1f2a

### Octal

• Octal numbers are marked with the dollar symbol and the letters oct

• Maximum 20 digits