The 0h Command

Command Summary

Indicates that a number is written in hexadecimal.

Command Syntax

0hdigits

Menu Location

This command can't be found in any menu besides the command catalog.

Calculator Compatibility

This command works on all calculators.

Token Size

2 bytes

The calculator can work with numbers written in three bases: decimal (the usual), binary, and hexadecimal. The 0h command indicates that a number is written in hexadecimal:

:0h10
           16
:0h2F6
           758

When written in hexadecimal, numbers are expressed as signed 32-bit integers (32 bits correspond to 8 hexadecimal digits), which means that only the integers between -2³¹ and 2³¹-1 can be expressed in hexadecimal. With other hexadecimal-related commands, numbers are simply truncated to fit in this range. Not so with 0h: if you enter more than 8 hexadecimal digits after the 0b, the result is a domain error.

Even if the calculator is in hexadecimal mode, you still have to write 0h for an integer to be interpreted as hexadecimal: the mode setting only affects output. If the calculator is in decimal mode, which is the default, you have to use ▶Hex to get output in hexadecimal.

Error Conditions

260 - Domain error happens when 0h is used with more than 8 hexadecimal digits after it.

Related Commands

• 0b
• ▶Bin
• ▶Hex