optimset — Create or update optimization options structures with MATLAB-compatible name/value handling.
optimset builds option structs for optimization routines and supports MATLAB-compatible create-from-scratch and copy-and-override workflows with recognized option names.
Syntax
options = optimset()
options = optimset(name, value, ...)
options = optimset(oldopts, name, value, ...)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
name | Any | Yes | — | Option field name. |
value | Any | Yes | — | Option value. |
oldopts | Any | Yes | — | Existing options struct to update. |
name | Any | No | — | Option field name. |
value | Any | Variadic | — | Option value(s) and additional name/value pairs. |
Returns
| Name | Type | Description |
|---|---|---|
options | Any | Options struct for optimization solvers. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:optimset:InvalidArgument | Name/value argument grammar is invalid. | optimset: invalid argument |
RunMat:optimset:InvalidInput | Option field names are not valid string scalars. | optimset: invalid input |
How optimset works
- Option names are case-insensitive for the builtins that consume them.
TolX,TolFun,MaxIter,MaxFunEvals,Display,Algorithm, andSpecifyObjectiveGradientare canonicalized when constructed withoptimset.GradObjis accepted as a MATLAB-compatible alias forSpecifyObjectiveGradient.- Documented numeric option values use single or double. Native integer payloads are a gated RunMat extension and retain their exact classes and values in the returned struct.
- Automatically resident payloads gather into host metadata. Explicitly resident payloads are rejected in compatibility mode and preserved only when RunMat extensions are enabled.
- Unknown option names are preserved so future solvers can read them.
Example
Create options for fminbnd
opts = optimset('TolX', 1e-10, 'Display', 'off');
x = fminbnd(@cos, 0, pi, opts)Expected output:
x =
3.1416Using optimset with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how optimset changes the result.
Run a small optimset example, explain the result, then change one input and compare the output.
Related Math functions
Optim
coneprog · fminbnd · fminunc · fsolve · fzero · integral · linprog · lsqcurvefit · lsqnonlin · optimoptions · quad · secondordercone
Elementwise
abs · angle · bsxfun · complex · conj · double · erf · erfcinv · exp · expm1 · factorial · flintmax · gamma · gammaln · heaviside · hypot · idivide · imag · intmax · intmin · ldivide · log · log10 · log1p · log2 · minus · nextpow2 · plus · pow2 · power · rdivide · real · realmax · realmin · realsqrt · rescale · sign · single · sqrt · swapbytes · times · typecast · uint16 · uint32 · uint8
Trigonometry
acos · acosh · asin · asinh · atan · atan2 · atanh · cos · cosd · cosh · cospi · deg2rad · pol2cart · rad2deg · sin · sind · sinh · sinpi · tan · tand · tanh
Reduction
all · any · bounds · cummax · cummin · cumprod · cumsum · cumtrapz · diff · gradient · max · maxk · mean · median · min · mink · movmax · movmean · movmedian · movmin · movprod · movstd · movsum · movvar · nnz · prod · rms · std · sum · trapz · var
Structure
bandwidth · isdiag · ishermitian · issymmetric · istril · istriu · symrcm
Signal
blackman · butter · buttord · cheb2ord · conv · conv2 · deconv · downsample · envelope · filter · filtfilt · fir1 · freqz · gauspuls · hamming · hann · hilbert · periodogram · pulstran · pwelch · rectpuls · resample · sawtooth · sinc · spectrogram · square · tripuls · unwrap · upsample · zplane
Ops
cross · ctranspose · dot · mldivide · mpower · mrdivide · mtimes · pagemtimes · pagetranspose · trace · transpose
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how optimset is executed, line by line, in Rust.
- View the source for optimset 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.