dec2hex — Convert decimal integers to hexadecimal character rows in MATLAB and RunMat.

dec2hex(D) converts each element of D to one uppercase hexadecimal character row. dec2hex(D, minDigits) pads rows to at least minDigits characters. Numeric arrays are processed in column-major element order and produce one output row per element.

Syntax

dec2hex(D)

How dec2hex works

• D may be numeric, integer, logical, character, or gpuArray numeric data.
• Double inputs must be finite integer values.
• Nonnegative values are padded with 0 characters.
• Negative values are represented using the smallest signed two's-complement storage width that can contain the value, with additional padding using F characters.
• Signed integer inputs preserve their source integer storage width for negative two's-complement output.
• minDigits must be a finite nonnegative integer scalar.
• Outputs larger than RunMat's character-output safety limit are rejected before formatting.
• Complex, non-finite, fractional, and unsupported input values raise an error.

Examples

Convert a scalar decimal value

s = dec2hex(1023)

Expected output:

s = '3FF'

Pad to a minimum width

s = dec2hex(1023, 6)

Expected output:

s = '0003FF'

Convert multiple values to padded rows

s = dec2hex([1023 122 14])

Expected output:

s = ['3FF'; '07A'; '00E']

Format a negative value as two's complement

s = dec2hex(-16)

Expected output:

s = 'F0'

Using dec2hex with coding agents

Open a RunMat example with live inputs, then ask the agent to explain how dec2hex changes the result.

FAQ

Related Comms functions

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how dec2hex is executed, line by line, in Rust.

• View the source for dec2hex in Rust on GitHub
• Learn how the RunMat runtime works
• Found a bug? Open an issue with a minimal reproduction.

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