Cheng, H. Gupta, K. C. text xx 9999 monographic und

electronic

It is shown in this paper that Euler was first to derive the finite rotation formula which is often erroneously attributed to Rodrigues, while Rodrigues was responsible for the derivation of the composition formulae for successive finite rotations and the so-called Euler parameters of finite rotation. Therefore, based upon historical facts, the following nomenclature is suggested: Euler's finite rotation formula, Rodrigues' composition formulae of finite rotations, and Euler-Rodrigues parameters. The text of the paper contains modern symbols and formula forms, while the Appendices contain brief summaries from relevant historical sources with minor alterations in symbols at the most. MATHEMATICAL TECHNIQUES - VECTORS https://drive.google.com/file/d/1VZs6yj-iMHkHJSfUGL0xknblLRAhzaPY/view?usp=drive_link https://drive.google.com/file/d/1VZs6yj-iMHkHJSfUGL0xknblLRAhzaPY/view?usp=drive_link 250602 20260521091552.0