ExponentialMovingAverage[list, \[Alpha]] gives the exponential moving average of list with smoothing constant \[Alpha].

Flat is an attribute that can be assigned to a symbol f to indicate that all expressions involving nested functions f should be flattened out. This property is accounted for ...

IdentityMatrix[n] gives the n*n identity matrix.

LogicalExpand[expr] expands out logical combinations of equations, inequalities, and other functions.

Longest[p] is a pattern object that matches the longest sequence consistent with the pattern p.

MovingMedian[list, r] gives the moving median of list, computed using spans of r elements.

Rescale[x, {min, max}] gives x rescaled to run from 0 to 1 over the range min to max. Rescale[x, {min, max}, {x_min, x_max}] gives x rescaled to run from x_min to x_max over ...

SawtoothWave[x] gives a sawtooth wave that varies from 0 to 1 with unit period.SawtoothWave[{min, max}, x] gives a sawtooth wave that varies from min to max with unit period.

SquareWave[x] gives a square wave that alternates between +1 and -1 with unit period.SquareWave[{y_1, y_2}, x] gives a square wave that alternates between y_1 and y_2 with ...

TriangleWave[x] gives a triangle wave that varies between -1 and +1 with the unit period.TriangleWave[{min, max}, x] gives a triangle wave that varies between min and max ...