Ekspresi 6: left parenthesis, "X" plus "A" cos left parenthesis, phi left parenthesis, "X" , right parenthesis , right parenthesis minus "x" , right parenthesis squared plus left parenthesis, "A" sin left parenthesis, phi left parenthesis, "X" , right parenthesis , right parenthesis minus "y" , right parenthesis squared less than or equal to .0 1X+AcosϕX−x2+AsinϕX−y2≤.01
6
Ekspresi 7: left parenthesis, "X" plus "A" "t" times cos left parenthesis, phi left parenthesis, "X" , right parenthesis , right parenthesis , "A" "t" times sin left parenthesis, phi left parenthesis, "X" , right parenthesis , right parenthesis , right parenthesisX+At·cosϕX,At·sinϕX
7
Ekspresi 8: left parenthesis, "x" minus "X" , right parenthesis squared plus "y" squared equals "A" squaredx−X2+y2=A2
