The Y doesn't stand for anything. It is part of the word RAY. In fact, the X doesn't stand for anything either. They were called x-rays because the type of radiation was unkno â¦ wn at the time. is added to make the name sound better. Megaman X, Sonic X, etcetera. It could stand for Extreme or something but that's looking a bit t â¦ oo much into it. 1  Cancers: X-Ray Identification of a Sarcoma Tumor In orthopedics, cancer is a serious issue because of the metastatic nature of cancerous malignancies.
Calculus is the study of how things change. It provides a framework for modeling systems in which there is change, and a way to deduce the predictions of such models. I have been around for a while, and know how things change, more or less.
Integral calculus is the study of the definitions, properties, and applications of two related concepts, the indefinite integral and the definite integral. The process of finding the value of an integral is called integration. In technical language, integral calculus studies two related linear operators. course in calculus is a gateway to other, more advanced courses in mathematics devoted to the study of functions and limits, broadly called mathematical analysis.