1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

//! # Basic Area Crate
//! This is a collection of some generally used area function
//! 

/// Find the Area
///
/// # Example
/// Area of Circle
/// ```
/// let radius = 12.0;
/// let answer = area_crate::area::circle(radius);
/// assert_eq!(452.38934211696005, answer);
/// ```
/// Area of Triangle
/// ```
/// let height = 20.0;
/// let width = 40.0;
/// let answer = area_crate::area::triangle(height, width);
/// assert_eq!(400.0, answer);
/// ```
/// Area of Square
/// ```
/// let length = 5;
/// let answer =  area_crate::area::square(length);
/// assert_eq!(25, answer);
/// ```
/// Area of Rectangle
/// ```
/// let height = 20;
/// let width = 40;
/// let answer = area_crate::area::rectangle(height, width);
/// assert_eq!(800, answer);
/// ```
///
/// # Limitations
///
/// # Some other section
///
pub mod area {
    pub fn circle(radius: f64) -> f64 {
        let pi = 3.14159265359;
        pi * radius * radius
    }

    pub fn triangle(height: f64, width: f64) -> f64 {
        let area = 0.5 * height * width;
        area
    }

    pub fn square(length: i32) -> i32 {
        length * length
    }

    pub fn rectangle(height: i32, width: i32) -> i32 {
        height * width
    }

}