Expressão 8: left parenthesis, "N" , sin left parenthesis, "F" "N" , right parenthesis , right parenthesisN,sinFN
8
Expressão 9: sine left parenthesis, "F" floor left parenthesis, "x" plus 0.5 , right parenthesis , right parenthesissinFfloorx+0.5
9
subsample fraction
10
Expressão 11: "a" equals mod left parenthesis, "x" , 1 , right parenthesisa=modx,1
11
linear interpolation:
12
Expressão 13: left parenthesis, 1 minus "a" , right parenthesis times sine left parenthesis, "F" floor left parenthesis, "x" plus 0 , right parenthesis , right parenthesis positive left parenthesis, "a" , right parenthesis times sine left parenthesis, "F" floor left parenthesis, "x" plus 1 , right parenthesis , right parenthesis1−a·sinFfloorx+0+a·sinFfloorx+1