Vector Calculation

A page from the coloring book of 5-year old JEFMAN :

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Enjoy weekend!

Thanks for sharing this scheme, it helped me understanding what are datas !
I wrote this code line by line to be more explicit...

ASSIGN/P0=0.0004
ASSIGN/P1=137
ASSIGN/P2=0.0016
ASSIGN/P3=62
ASSIGN/PROJ_X1=P0*COS(DEG2RAD(90-P1)
ASSIGN/PROJ_X2=P2*COS(DEG2RAD(90-P3)
ASSIGN/PROJ_Y1=P0*SIN(DEG2RAD(90-P1)
ASSIGN/PROJ_Y2=P2*SIN(DEG2RAD(90-P3)
ASSIGN/PROJ_X2M=-P2*COS(DEG2RAD(90-P3)
ASSIGN/PROJ_Y2M=-P2*SIN(DEG2RAD(90-P3)
ASSIGN/PROJ_X=PROJ_X1+PROJ_X2M
ASSIGN/PROJ_Y=PROJ_Y1+PROJ_Y2M
ASSIGN/LENGTH_R=SQRT(PROJ_X^2+PROJ_Y^2)
ASSIGN/ANGLE_R=RAD2DEG(ATAN(PROJ_X/PROJ_Y)+180

or directly
ASSIGN/LENGTH_R=SQRT((P0*COS(DEG2RAD(90-P1)-P2*COS(DEG2RAD(90-P3))^2+(P0*SIN(DEG2RAD(90-P1)-P2*SIN(DEG2RAD(90-P3))^2)
ASSIGN/ANGLE_R=RAD2DEG(ATAN((P0*COS(DEG2RAD(90-P1)-P2*COS(DEG2RAD(90-P3))/(P0*SIN(DEG2RAD(90-P1)-P2*SIN(DEG2RAD(90-P3)))+180

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JEFMAN thanks for sharing, this should do.
there should not be any issue if values of p1& p3 changes significantly?
sorry, i'm quite slaggy in trigo..