Vector Arrows
Several arrows fan out from one point · add them tip to tail and judge which way the combined arrow points
About PlayMemorize Vector Arrows
Vector Arrows is a quick spatial-estimation game. Several arrows fan out from a single point, each pointing a different way and with a different length. Add them tip to tail in your head and judge which of the eight compass directions the combined arrow points · then tap the matching direction glyph.
What it trains. Vector addition is the everyday intuition behind forces, velocities, currents, and the complex-number arrows you meet in trigonometry and physics. Estimating a resultant by eye builds the mental model before any formula does · longer arrows pull the sum harder, opposite arrows cancel, and a cluster of arrows roughly agrees on a heading.
Streak format. Each correct direction advances your streak; one wrong answer ends the run. As the streak grows, more arrows are added and the resultant is allowed to sit closer to a boundary between directions, so the call gets finer.
No reading required · the arrows and the answer glyphs are language-neutral. Part of the PlayMemorize family, runs in your browser and works offline as a Progressive Web App.
FAQ
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What is Vector Arrows?
A spatial-estimation game: several arrows point out from one origin, and you judge the direction of their combined arrow · the vector sum · choosing from eight compass directions. -
How do I add the arrows?
Imagine laying each arrow tip to tail, one after another, then drawing a single arrow from the very start to the very end. Longer arrows pull the result more, and arrows pointing opposite ways partly cancel. -
Do I need to know the maths?
No. The game is about building the visual intuition for vector addition by eye · the same intuition behind forces, velocities, and the arrows used in trigonometry and physics. No formulas or numbers to compute. -
How does it get harder?
Higher difficulty and longer streaks add more arrows and let the combined arrow sit closer to the line between two directions, so you have to judge the heading more precisely. -
How does my progress save?
Your best streak is stored locally in your browser. Sign in to sync it across devices.