This updated version of iROC replaces the previous version which is labeled simply "calculus". Thanks to Dr Richard P, Feynman . You might enjoy his classic 1961 Cal Tech lectures on Physics too, available for free on line. Peace. Tarzan
![SI1!: iROC Pro [instantaneous Rate of Change Deluxe version]](https://s3.tradingview.com/r/rx9ESky5_mid.png "iROC Pro [instantaneous Rate of Change Deluxe version]")
