CEG220: Introduction to C Programming for Engineers – I

Section 2

Homework for Week 2

1) Write a program that asks for two coordinates, P₁ = (x₁, y₁, z₁) and P₂ = (x₂, y₂, z₂) and computes the distance between them.

2) Write a program that rounds a number to the nearest (a) tenth, (b) hundredth, (c) thousandth. HINT: you don’t even need math.h

3) When do you want to use a char, short, int, or long int to store an integer value? When do you want to make a value unsigned? What’s the difference between a float and a double?

4) Under what circumstances should you use a function instead of a macro? When do you want to use a global constant instead of a macro?

1) Let’s say you have a triangle such as below. A = 60º. Compute the value of the remaining side