Tari9at Euler
hiya tari9a toumakin min rasm moun7ana bayani li dalla min doun el 7aja li dastouriha (tsemma manes7a9ouch f(x) geddah tousawi ) wa lakin li tatbi9 had tari9a ta7taj ila dastour mouchta9at al dalla w no9ta mou3ayana minha
ta3tamin had tari9a 3la atta9rib el taaloufi eli 9anoun ta3ou f(x+h)=f(x) +hf'(x)
donc kifach tdir tebda b hadik no9ta li 3and w li i7tatiyatha (x;f(x)) x ta3ha tzidlou mi9dar wella nsammouha si3a "h" ma3loum w koul ma kan "h" sghir kan rasm ada9
toukhrjelna 9anoun ta9rib taaloufi
wech ndirou nrouhou na7sbou mouchta9at x bi dalla f w nodrbouha fi "h" dima rahou moubayan fi el 9anoun w nejm3ou mba3ad f(x)+hf'(x) nelgaw soura ta9ribiya lil 3adad x+h bi dalla f w mba3ad x+h hadak ne3tabrouh howa x w nkemlou b nafs tari9a
hiya 3andha nafs mabda2 el moutataliya tarajou3iya tsemma lazmk tarja3 lel 9ima el sabi9a bech tkharej el 9ima el 7aliya
Wafa9ana allah w iyakom ed3oulna m3akoum