表达式8: left parenthesis, 1 minus "s" left parenthesis, "a" , right parenthesis , right parenthesis left parenthesis, left parenthesis, 1 minus "s" left parenthesis, "a" , right parenthesis , right parenthesis "A" plus left parenthesis, "s" left parenthesis, "a" , right parenthesis , right parenthesis "A" Subscript, 1 , Baseline , right parenthesis plus left parenthesis, "s" left parenthesis, "a" , right parenthesis , right parenthesis "B"1−sa1−saA+saA1+saB
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定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
8
表达式9: "a" equals 0.6 2 5a=0.625
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11
9
Interpolation (Only used for smooth animation)
对学生隐藏该文件夹。
10
表达式11: "s" left parenthesis, "x" , right parenthesis equals left brace, "x" less than 0 : 0 , "f" greater than or equal to "x" greater than or equal to 0 : left parenthesis, StartFraction, "x" Over "f" , EndFraction , right parenthesis Superscript, "k" , Baseline "f" , "f" less than "x" less than or equal to 1 : 1 minus left parenthesis, StartFraction, StartAbsoluteValue, "x" minus 1 , EndAbsoluteValue Over 1 minus "f" , EndFraction , right parenthesis Superscript, "k" , Baseline left parenthesis, 1 minus "f" , right parenthesis , "x" greater than 1 : 1 , right bracesx=x<0:0,f≥x≥0:xfkf,f<x≤1:1−x−11−fk1−f,x>1:1
