MatrixView

A matrix product worked out entry by entry: a × b = c, centered on (x, y). From delay, every step seconds the next entry of the product is written, row by row, while its row of a and column of b are highlighted. product(a, b) is the multiplication, None when the sizes do not fit. Gallery scene: MatrixView.

MatrixView 4.6 sPlayUnmuteCopy render command

use fframes_kit::prelude::*;
use fframes_kit::kits::math::product;

fn figure<'a>(ui: &mut Ui<'a, '_, '_>) -> Svgr<'a> {
    ui.show(MatrixView {
        a: vec![vec![1.0, 2.0, 0.0], vec![-1.0, 3.0, 1.0]],
        b: vec![vec![2.0, 1.0], vec![0.0, 1.0], vec![4.0, -2.0]],
        delay: 1.0,
        step: 0.8,
        ..ui.defaults()
    })
}

let c = product(&[vec![1.0, 2.0]], &[vec![3.0], vec![4.0]]);
assert_eq!(c, Some(vec![vec![11.0]]));

API

Components are plain structs. Set the fields you need and fill the rest with ..ui.defaults(): the defaults below come from the current theme (theme. values are fields of Theme).

MatrixView

Field	Type	Default	Description
a	Vec<Vec<f64>>	vec![vec![1.0, 2.0], vec![3.0, 4.0]]	The left matrix, as rows of entries.
b	Vec<Vec<f64>>	vec![vec![5.0, 6.0], vec![7.0, 8.0]]	The right matrix, as rows of entries; its row count must equal the column count of a, otherwise nothing is drawn.
x	f32	960.0	Horizontal middle of the three matrices, in pixels of the canvas.
y	f32	540.0	Vertical middle of the matrices, in pixels of the canvas.
gap	f32	theme.spacing.lg	Pixels between the matrices and the signs.
delay	f32	0.5	Seconds after the container’s start before the first entry is worked out.
step	f32	0.8	Seconds each entry of the product takes; its row and column highlight meanwhile.
decimals	usize	2	Most digits after the decimal point of the written entries.
highlight	Color	theme.colors.highlight	Colour of the highlight on the current row of a and column of b.
result_color	Color	theme.colors.accent	Colour of the entries of the product.
matrices_enter	Option<FadeIn>	Some(FadeIn::themed(theme))	Fade in of the matrices; None shows them from the start.

Feature math · Source