Lesson 7.2 · 23 of 25 lessons

Iterative computation

See how conditioning magnifies input error and how repeated computation converges toward one direction.

Open the interactive animation

01 · Story

What to verify in this scene

Follow the explanations and operations, then identify the mathematical evidence that remains in the final scene.

  1. 01

    Each application of A halves the y component while preserving the x component

  2. 02

    Apply the same A again and watch which direction v approaches

  3. 03

    v moves closer to the x-axis
    Iterative methods exploit this dominant direction

02 · Notebook

The runnable notebook

This source creates the mathematical objects and controls the order of operations and animation. Read it here, then play the same scene yourself.

2d
zoom 4/5
grid off
relative-grid on
coordinates on
1 0  #A
0 1/2
2, 2  #v@
// Each application of {{A}} halves the y component while preserving the x component
checkpoint Iterative computation

A
// Apply the same {{A}} again and watch which direction {{v}} approaches
A
A
// {{v}} moves closer to the x-axis\nIterative methods exploit this **dominant direction**
focus v
Open the interactive animation

03 · Unit 7

Lessons in this unit

Matrix computation & stability — See how conditioning magnifies input error and how repeated computation converges toward one direction.

  1. 7.1Conditioning & sensitivity
  2. 7.2Iterative computation