mag()

Calculates the magnitude (or length) of a vector.

Examples

def setup():
    x1 = 20
    x2 = 80
    y1 = 30
    y2 = 70

    py5.line(0, 0, x1, y1)
    py5.println(py5.mag(x1, y1))  # Prints "36.05551"
    py5.line(0, 0, x2, y1)
    py5.println(py5.mag(x2, y1))  # Prints "85.44004"
    py5.line(0, 0, x1, y2)
    py5.println(py5.mag(x1, y2))  # Prints "72.8011"
    py5.line(0, 0, x2, y2)
    py5.println(py5.mag(x2, y2))  # Prints "106.30146"

Description

Calculates the magnitude (or length) of a vector. A vector is a direction in space commonly used in computer graphics and linear algebra. Because it has no “start” position, the magnitude of a vector can be thought of as the distance from the coordinate (0, 0) to its (x, y) value. Therefore, mag() is a shortcut for writing dist(0, 0, x, y).

Signatures

mag(
    a: Union[float, npt.NDArray],  # first value
    b: Union[float, npt.NDArray],  # second value
    /,
) -> float

mag(
    a: Union[float, npt.NDArray],  # first value
    b: Union[float, npt.NDArray],  # second value
    c: Union[float, npt.NDArray],  # third value
    /,
) -> float

Updated on September 01, 2022 16:36:02pm UTC