表达式9: 0 less than or equal to "y" less than or equal to "f" left parenthesis, "x" , right parenthesis left brace, 0 less than or equal to "x" less than "x" Subscript, 0 , Baseline , right brace0≤y≤fx0≤x<x0
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Integral (indefinida) de f(x)
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表达式11: "F" left parenthesis, "x" , right parenthesis equals Start integral from 0 to "x" , end integral, "f" left parenthesis, "t" , right parenthesis "d" "t" left brace, 0 less than or equal to "x" less than or equal to "x" Subscript, 0 , Baseline , right braceFx=∫x0ftdt0≤x≤x0
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表达式12: "y" equals "F" left parenthesis, "x" , right parenthesisy=Fx
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表达式13: left parenthesis, "x" Subscript, 0 , Baseline , "F" left parenthesis, "x" Subscript, 0 , Baseline , right parenthesis , right parenthesisx0,Fx0
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FUNCIONES AUXILIARES
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Escalón Unitario:
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表达式16: "h" left parenthesis, "x" , right parenthesis equals left brace, "x" less than 0 : 0 , "x" greater than or equal to 0 : 1 , right bracehx=x<0:0,x≥0:1
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Rampa Unitaria:
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表达式18: "r" left parenthesis, "x" , right parenthesis equals "x" times "h" left parenthesis, "x" , right parenthesisrx=x·hx
