Salaam Alaykum
Bastegi ke meqdare pichidegi e karetoon shayad asaantar bashe ke az yek ketab e "Orbital Mechanics" estefade konid va mohasebe koneed. Yek barnameye ke mishenasam
STK hast:
Rooye siteshoon yek "basic version" e majjani neveshte mishe
download kard.
Vali dar nazar dashte bash agar karetoon mokhtasar hast shayad be yad gereftan e barname nayarzad va be naf bashe ye barnameye sadetar peyda kard ya khodetoon hesab konid
Khodahafiz