This function lets the user calculate the mathematical linear distance
Between a specific point and a line (given geometrical 3 points)

## Usage

`dist2d(x, a = c(0, 0), b = c(1, 1))`

## Arguments

- x
Vector. Coordinates of the point from which we want to
measure the distance

- a
Vector. Coordinates of 1st point over the line

- b
Vector. Coordinates of 2st point over the line

## Value

Numeric value result

## Examples

```
dist2d(x = c(5, 2))
#> [1] 2.12132
dist2d(x = c(5, 2), a = c(0, 0), b = c(0, 1))
#> [1] 5
dist2d(x = c(5, 2), a = c(0, 0), b = c(1, 0))
#> [1] 2
```