For the lowest level courses, get the model you will eventually need in a later course (e.g., a student in MATH 1100 who will eventually take MATH 1160 should get a TI-83/84, but a student in MATH ...
It’s Pi Day, the nerdiest of holidays because it’s all about a mathematical constant that represents the ratio of a circle’s circumference to its diameter (yes, sometimes writing majors do pay ...