Question

What are mathematical expressions?

(a) Any mathematical relation

(b) Any mathematical operation

(c) Any mathematical conversation

(d) Any mathematical function

I have been asked this question by my school principal while I was bunking the class.

My doubt is from Functions and Expressions topic in portion Beyond the Basics of MATLAB

Answer 1

Correct answer is (b) Any mathematical operation

The best I can explain: A mathematical function is used to relate a dependent variable with an independent variable so it is used to operate on the independent variable. Similarly, any mathematical relation is used to relate an independent variable with a dependent variable. This is also an operation since based on the value of the independent variable, we comment on the value of the dependent variable. Hence a mathematical expression is simply any mathematical operation.