in the Trading the Trend article of TASC September 1998
You can change long to short in the Input Settings
Please, use it only for learning or paper trading. Do not for real trading.
USDT (TRC20): TH29EEXa19vfwZNYvxdUuMxoFY5QDYLcWG
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.