smoothstep vs tanh vs cos | Desmos

Expression 2: 2 left brace, "x" less than 0 : 0 , "x" greater than 1 : 1 , 3 "x" squared minus 2 "x" cubed , right brace negative 1 Has graph. To audio trace, press ALT+T.

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Expression 3: left brace, "x" less than 0 : negative 1 , "x" greater than 1 : 1 , negative cos left parenthesis, pi "x" , right parenthesis , right brace Has graph. To audio trace, press ALT+T.

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