46
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EQ=DSQRT(RR*RR+RJ*RJ) DEL=DATAN2(RJ,RR) SIND=DSIN(DEL) COSD=DCOS(DEL) BID=BIX*SIND-BIY*COSD BIQ=BIX*COSD+BIY*SIND VD=VT*SIND VQ=VT*COSD EVDEL=DEL+VDEL SIND=DSIN(EVDEL) COSD=DCOS(EVDEL) VX=VT*DCOS(VDEL) VY=VT*DSIN(VDEL) BIX=BID*SIND+BIQ*COSD BIY=-BID*COSD+BIQ*SIND
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