E
Equation Artillery
coordinates combat
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Sharp shots.
Clean equations.

Every level is built from readable equations and coordinates that can be reasoned through by hand.

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Coordinates

A point like (-4, 2) means move left or right first, then up or down. The cannon coordinate is the barrel tip, not the tank body.

Check the launch

Put the cannon x into the equation. If the y answer is not the cannon y, the shell cannot launch and it blows at the barrel.

Check the target

After the launch works, test the target coordinate. If x = 4 gives the target's y, that equation can hit.

Slope and intercept

For y = 2x - 3, the slope is 2 and the intercept is -3. Small changes can miss by a lot.

Curves

Parabolas, V-shapes, and cubics can curve around obstacles. They still must pass through the cannon and the target.

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