Expression 21: "x" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis equals "r" sine left parenthesis, StartFraction, 2 pi "t" Over "n" , EndFraction , right parenthesisx2t=rsin2πtn
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Expression 22: left parenthesis, "x" Subscript, 1 , Baseline left parenthesis, "N" , right parenthesis , "x" Subscript, 2 , Baseline left parenthesis, "N" , right parenthesis , right parenthesisx1N,x2N
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Expression 23: "r" equals "n"r=n
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Functions
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Expression 25: "f" Subscript, "c" "h" "o" "r" "d" "l" "e" "n" , Baseline left parenthesis, "x" , right parenthesis equals 2 "r" sine left parenthesis, StartFraction, StartNestedFraction, 2 pi NestedOver "n" , EndNestedFraction left parenthesis, StartNestedFraction, "n" NestedOver 2 , EndNestedFraction plus StartAbsoluteValue, StartNestedFraction, "n" NestedOver 2 , EndNestedFraction minus "x" , EndAbsoluteValue , right parenthesis minus StartNestedFraction, 2 pi NestedOver "n" , EndNestedFraction left parenthesis, StartNestedFraction, "n" NestedOver 2 , EndNestedFraction minus StartAbsoluteValue, StartNestedFraction, "n" NestedOver 2 , EndNestedFraction minus "x" , EndAbsoluteValue , right parenthesis Over 2 , EndFraction , right parenthesisfchordlenx=2rsin2πnn2+n2−x−2πnn2−n2−x2
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Expression 26: "f" Subscript, "d" "r" "a" "w" 2 , Baseline left parenthesis, "u" Subscript, 1 , Baseline , "u" Subscript, 2 , Baseline , "v" Subscript, 1 , Baseline , "v" Subscript, 2 , Baseline , "x" , right parenthesis equals "f" Subscript, "d" "r" "a" "w" 1 , Baseline left parenthesis, "u" Subscript, 1 , Baseline , "u" Subscript, 2 , Baseline , "v" Subscript, 1 , Baseline , "v" Subscript, 2 , Baseline , "x" , right parenthesis left brace, min left parenthesis, "u" Subscript, 1 , Baseline , "v" Subscript, 1 , Baseline , right parenthesis less than "x" less than max left parenthesis, "u" Subscript, 1 , Baseline , "v" Subscript, 1 , Baseline , right parenthesis , right bracefdraw2u1,u2,v1,v2,x=fdraw1u1,u2,v1,v2,xminu1,v1<x<maxu1,v1
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Expression 27: "f" Subscript, "d" "r" "a" "w" 1 , Baseline left parenthesis, "u" Subscript, 1 , Baseline , "u" Subscript, 2 , Baseline , "v" Subscript, 1 , Baseline , "v" Subscript, 2 , Baseline , "x" , right parenthesis equals StartFraction, "u" Subscript, 2 , Baseline minus "v" Subscript, 2 , Baseline Over "u" Subscript, 1 , Baseline minus "v" Subscript, 1 , Baseline , EndFraction left parenthesis, "x" minus "u" Subscript, 1 , Baseline , right parenthesis plus "u" Subscript, 2 , Baselinefdraw1u1,u2,v1,v2,x=u2−v2u1−v1x−u1+u2