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_ _ 0 sine / \ / \ \ _ / \ _ / .-''-. .-''-. 1 abs-sine / \ / \ / \/ \ _ _ 2 half-sine / \_____/ \_____ .--- .--- 3 pulse-sine / | / | / |____/ |____ _____ _____ 4 square _____ _____ . | . | 5 sawtooth . ' | . ' | . ' |. ' | / \ / \ 6 triangle / \ / \ \ / \ / \ / \ / 7 noise