BlockWerk Documentation
ENNLDEFRESZH
Launch App
trig

Trigonometric

Math

The Trigonometric block provides 7 trigonometric functions in a single configurable block:

  • sin(x) - Sine
  • cos(x) - Cosine
  • tan(x) - Tangent
  • asin(x) - Arcsine (inverse sine)
  • acos(x) - Arccosine (inverse cosine)
  • atan(x) - Arctangent (inverse tangent)
  • atan2(y,x) - Two-argument arctangent

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Mathematical Model

y(t)=ftrig(u(t))y(t) = f_{\text{trig}}(u(t))

Inputs & Outputs

Direction ID Label Type Status
→ In in Input number Required
→ In in2 X (atan2) number Required
← Out out Output number Output

Parameters

Parameters Label Type Default Description
function Function select sin

Usage Examples

Sine Wave Generation

Ramp (0 to 2π) → Trigonometric(sin) → uPlotDisplay

Full Angle Recovery with atan2

sin_signal → Trigonometric(atan2) ← cos_signal
                    ↓
             Angle (radians)

Remarks & Best Practices

  • Angle units: All trigonometric functions use radians; convert degrees to radians via Gain(× π/180)
  • tan singularities: tan(x) approaches ±∞ at x = π/2 + nπ; place a Saturation block after tan if your signal crosses these points
  • atan2: The two-argument arctangent recovers the full angle (−π, π] from (y, x) coordinates; connect y to in and x to in2
  • asin/acos clamping: Input values outside [−1, 1] are automatically clamped; consider a Saturation block beforehand for explicit bounds
  • Periodic outputs: sin/cos outputs are bounded to [−1, 1]; scale with Gain to match your signal range

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