Expression 11: "m" left parenthesis, "k" , right parenthesis equals "a" times left parenthesis, "p" left bracket, "k" plus 1 , right bracket minus "p" left bracket, "k" minus 1 , right bracket , right parenthesismk=a·pk+1−pk−1
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Expression 12: "f" left parenthesis, "k" , right parenthesis equals "p" Subscript, "x" , Baseline left bracket, "k" plus 1 , right bracket minus "p" Subscript, "x" , Baseline left bracket, "k" , right bracketfk=pxk+1−pxk
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Expression 13: "p" equals left bracket, 0 , 4 , 2 , 3 , 4 , right bracketp=0,4,2,3,4
5 element list
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Expression 14: "p" Subscript, "x" , Baseline equals left bracket, 0 , 4 , 8 , 11 , 15 , right bracketpx=0,4,8,11,15
5 element list
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Expression 15: "z" left parenthesis, "x" , "i" , right parenthesis equals StartFraction, "x" minus "p" Subscript, "x" , Baseline left bracket, "i" , right bracket Over "p" Subscript, "x" , Baseline left bracket, "i" plus 1 , right bracket minus "p" Subscript, "x" , Baseline left bracket, "i" , right bracket , EndFractionzx,i=x−pxipxi+1−pxi
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Expression 16: "s" Subscript, "s" "t" "a" "r" "t" , Baseline left parenthesis, "x" , 1 , right parenthesissstartx,1
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Expression 17: "s" left parenthesis, "x" , 2 , right parenthesissx,2
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Expression 18: "s" left parenthesis, "x" , 3 , right parenthesissx,3
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Expression 19: "s" Subscript, "e" "n" "d" , Baseline left parenthesis, "x" , 4 , right parenthesissendx,4
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Hidden Label: left parenthesis, "p" Subscript, "x" , Baseline , "p" , right parenthesispx,p
