tripuls — Generate sampled triangular pulses.
tripuls(T) returns samples of a unit-width triangular pulse centered at zero. tripuls(T, W, S) uses width W and skew S in [-1, 1]. The documented single and double sample-time classes preserve their floating output class. Typed-integer sample times and controls are available in RunMat mode through checked binary64 boundaries.
Syntax
Y = tripuls(T)
Y = tripuls(T, W)
Y = tripuls(T, W, S)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
T | NumericArray | Yes | — | Sample times relative to the pulse center. |
W | NumericScalar | No | 1 | Pulse width. |
S | NumericScalar | No | 0 | Skew in [-1, 1]. |
Returns
| Name | Type | Description |
|---|---|---|
Y | NumericArray | Triangular pulse samples. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:tripuls:InvalidInput | Input times cannot be interpreted as real numeric samples. | tripuls: expected real numeric input |
RunMat:tripuls:WidthInvalid | Width is not a positive finite scalar. | tripuls: width must be a positive finite scalar |
RunMat:tripuls:SkewInvalid | Skew is not a finite scalar in [-1, 1]. | tripuls: skew must be a finite scalar in [-1, 1] |
RunMat:tripuls:ArgCount | Too many input arguments are provided. | tripuls: expected 1, 2, or 3 arguments |
RunMat:tripuls:InternalError | Internal tensor construction or GPU gather fails. | tripuls: internal error |
How tripuls works
- Operates element-wise on real numeric scalars, vectors, matrices, and N-D tensors; preserves input shape.
- The pulse is zero outside
[-W/2, W/2]and reaches one atS*W/2. - The width must be positive and finite.
- The skew must be finite and in
[-1, 1]. - Complex and text inputs are rejected with a builtin-scoped error.
- Single input produces single output; double input produces double output; typed-integer input is a RunMat extension and produces double output.
- Typed-integer sample times and typed-integer width/skew controls are independently compatibility-gated and must be exactly representable as double.
Examples
Default centered triangle
t = -0.5:0.25:0.5;
y = tripuls(t)Expected output:
y = [0 0.5 1 0.5 0]Skewed triangle
t = -1:1;
y = tripuls(t, 2, 1)Expected output:
y = [0 0.5 1]Using tripuls with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how tripuls changes the result.
Run a small tripuls example, explain the result, then change one input and compare the output.
FAQ
Can tripuls be used inside pulstran?⌄
Yes. pulstran(T, D, 'tripuls', W, S) evaluates triangular pulses centered at each delay.
Related Math functions
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 · unwrap · upsample · zplane
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
Optim
coneprog · fminbnd · fminunc · fsolve · fzero · integral · linprog · lsqcurvefit · lsqnonlin · optimoptions · optimset · quad · secondordercone
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 tripuls is executed, line by line, in Rust.
- View the source for tripuls in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
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