Expression 16: "f" left parenthesis, "x" , right parenthesis equals left brace, 0 less than or equal to "x" less than or equal to "a" : StartFraction, "x" Over "a" , EndFraction times "t" , right bracefx=0≤x≤a:xa·t
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The two below functions represent together the linear stream with cliff:
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Expression 18: "g" left parenthesis, "x" , right parenthesis equals left brace, 0 less than or equal to "x" less than "b" : 0 , "b" less than "x" less than "a" : StartFraction, "x" Over "a" , EndFraction "t" , right bracegx=0≤x<b:0,b<x<a:xat
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Expression 19: "x" equals "b" left brace, 0 less than or equal to "y" less than StartFraction, "x" Over "a" , EndFraction "t" , right bracex=b0≤y<xat
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The Dynamic Streams group the traditional unlock stream, and both the exponential and exponential with cliff streams: