10m RT & 5M RT &3.5 M RT & 10M LT& 5M LT& 3.5MLT& CL
( , ) RT
(10,235.35 ) LT -10, 235.45 )
X1 X11
Y1 Y11
A=0.5*{(X1*Y2+X2*Y3+X3*Y4+X4*Y5+X5*Y6+X6*Y7+X7*Y8+ X8*Y9+X9*Y10+X10*Y11+X11*Y1)-(Y1*X2+Y2*X3+Y3*X4+Y5*X6+Y6*X7+Y7*X8+Y8*X9+Y9*X10+ Y10*X11+Y11*X1)}