deg2rad — Convert angles from degrees to radians in MATLAB and RunMat.
r = deg2rad(d) converts each angle in d from degrees to radians using d*pi/180, with element-wise behavior matching MATLAB and RunMat.
Syntax
Y = deg2rad(X)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
X | Any | Yes | — | Input scalar, array, logical array, complex value, or gpuArray. |
Returns
| Name | Type | Description |
|---|---|---|
Y | Any | Element-wise degree-to-radian conversion result. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:deg2rad:InvalidInput | Input cannot be interpreted as supported numeric/logical/complex data. | deg2rad: invalid input |
RunMat:deg2rad:Internal | Internal gather/conversion/allocation flow failed. | deg2rad: internal error |
How deg2rad works
- Operates element-wise on scalars, vectors, matrices, and N-D tensors.
- Integer and logical inputs are promoted to double precision before conversion.
- Complex inputs are scaled component-wise, matching ordinary multiplication by
pi/180. - Output shape matches the input shape.
- String inputs are unsupported and raise a builtin-scoped error.
Examples
Converting a scalar angle
r = deg2rad(90)Expected output:
r = 1.5708Converting a vector of angles
angles = [0 30 45 60 90];
r = deg2rad(angles)Expected output:
r = [0 0.5236 0.7854 1.0472 1.5708]Using deg2rad with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how deg2rad changes the result.
Run a small deg2rad example, explain the result, then change one input and compare the output.
FAQ
Is deg2rad(x) equivalent to x*pi/180?⌄
Yes. The builtin exists for readability and MATLAB compatibility.
Does deg2rad preserve array shape?⌄
Yes. Each element is converted independently and the original shape is preserved.
Related Math functions
Trigonometry
acos · acosh · asin · asinh · atan · atan2 · atanh · cos · cosd · cosh · rad2deg · sin · sind · sinh · tan · tand · tanh
Elementwise
abs · angle · complex · conj · double · exp · expm1 · factorial · gamma · hypot · imag · ldivide · log · log10 · log1p · log2 · minus · nextpow2 · plus · pow2 · power · rdivide · real · sign · single · sqrt · times
Reduction
all · any · cummax · cummin · cumprod · cumsum · cumtrapz · diff · gradient · max · mean · median · min · nnz · prod · std · sum · trapz · var
Structure
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how deg2rad is executed, line by line, in Rust.
- View the source for deg2rad in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.
- RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
- Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.