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Indicator · Pine Script v6 · Own pane
Hyperbolic Tangent (TANH)
This indicator applies the hyperbolic tangent to a chosen source series and plots the result in a separate pane.
GitHub stars47on the repository
Pine versionv6current
Lines of code42
Settings2inputs
LicenceMIT
Last update8 months ago28 Feb 2026
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above, or the copy button on the code below.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.
Source Code
42 lines of Pine Script v6 from indicators/numerics/tanh.pine, published under MIT. Keep the author's credit and licence lines when you reuse it.
// The MIT License (MIT)
// © mihakralj
//@version=6
indicator("Hyperbolic Tangent (TANH)", "TANH", overlay=false, precision=6)
//@function Applies the hyperbolic tangent (tanh) function to a source series.
// Formula: S(x) = tanh(k * (x - x0))
// where tanh(y) = (exp(y) - exp(-y)) / (exp(y) + exp(-y))
// Maps any real-valued input to the range (-1, 1).
//@param src The source series.
//@param k The steepness factor. Higher k means a steeper curve around x0.
//@param x0 The x-value of the inflection point (where the output is 0).
//@returns The tanh transformed series, values between -1 and 1.
tanh(series float src, simple float k, float x0) =>
y = k * (src - x0)
exp_y = math.exp(y)
exp_neg_y = math.exp(-y)
numerator = exp_y - exp_neg_y
denominator = exp_y + exp_neg_y
result = float(na)
if denominator == 0.0
if numerator > 0
result := 1.0
else if numerator < 0
result := -1.0
else
result := 0.0
else
result := numerator / denominator
result
// ---------- Main loop ----------
// Inputs
i_source = input.source(close, "Source")
i_steepness_k = input.float(0.5, "Steepness (k)", minval = 0.1, step = 0.1)
// Calculation
tanhValue = tanh(i_source, i_steepness_k, ta.sma(i_source,200))
// Plot
plot(tanhValue, "Tanh", color=color.yellow, linewidth=2)
Overview
Hyperbolic Tangent (TANH) centers the transform on a 200-bar simple moving average of that source, multiplies the deviation by a steepness factor, and maps the output into the open range from negative one to one. A higher steepness setting makes the curve rise more sharply around that average. A zero denominator is clamped to the nearest bound. It does not generate entries, exits, or risk rules.
- Hyperbolic tangent of source minus a 200-bar SMA
- Output mapped between -1 and 1
- Adjustable steepness factor
- Zero-denominator saturation handling
- Separate-pane line plot
Details
Published by
mihakralj on GitHub
Type
Indicator, Pine Script v6
Draws
Separate pane below the chart
Category
Moving averages, Mean reversion
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Topics
pinescriptpinescript-indicatorstechnical-analysistradingview-indicators
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Source | source | close | i_source |
| Steepness (k) | float | 0.5 | i_steepness_k |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
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