Mathematics

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Parametric equations and program for Wankel rotary engine.

Parametric plot illustrating a Wankel engine's motion, generated using trigonometric functions in a calculator program. The graph shows a looped path with labeled points A, B, and C, and circles marking positions along the trajectory.

The illustration consists of two sections. On the left is a block of programming code titled “PROGRAM: WANKEL,” written for a graphing calculator, which generates the plotted figure. The code employs trigonometric functions to create the parametric plot. On the right, the resulting parametric curve is displayed in a coordinate plane with labeled axes. The plotted path shows a complex, looped trajectory generated by the equations in the program, resembling the motion of a Wankel engine. The graph includes small circles at key points along the path, with arrows indicating the direction of movement. Points A, B, and C are labeled for reference on the curve.

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