Calculous a. : Of the nature of a calculus; like stone; gritty; as, a calculous concretion.

Calculous a. : Caused, or characterized, by the presence of a calculus or calculi; a, a calculous disorder; affected with gravel or stone; as, a calculous person.

Example:
i want to take a corespondence course online for physics and Calculous will it too difficult?

Taxonomy
calculus, derivative, infinitesimals, Newton, mathematicians, Leibniz, slope, dx, differential calculus, integral calculus, sum, curve, interval, Newton and Leibniz, antiderivative, differentiation, mathematics, the calculus.

Defination from the web:
calculus. ... Calculus is the study of change, in the same way that geometry is the study of shape and algebra is the study of operations and their application ...