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//Variable Declaration
v=204.81 //True anomaly(degrees) from Example 2.14
r=7257 //Magnitude of radius vector(km) from Example 2.14
//Calculation
rP=r*cos(v*%pi/180) //P coordinate of radius vector(km)
rQ=r*sin(v*%pi/180) //Q coordinate of radius vector(km)
//Result
printf("r in the perifocal coordinate system is %.2f Pkm %.2f Qkm",rP,rQ)
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