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Rekha 29: '''Leonhard Euler''' (pronounced ''Oiler'') ([[15 April]] [[1707]] – [[7 September]] [[1783]]) ek [[Switzerland\|Swiss]] mathematician aur physicist rahaa. Uu aapan jindagi ke jaada time [[Russia]] aur [[Germany]] me bitais rahaa. Euler calculus aur topology me nawaa chij paais rahaa aur dher sabd banais rahaa jon ki abhi mathematics me kaam me lawa jaae hae. Uu mathematical function ke idea suruu karis rahaa.<ref name="function">{{cite book\| last = Dunham\| first = William\| title = Euler: The Master of Us All\| year = 1999\| publisher =The Mathematical Association of America \| pages = 17}}</ref> Uu mechanics, optics, aur astronomy me bhi kaam karis rahaa. Rekha 37: {{BD\|1707\|1783\|Euler, Leonhard}} [[~~Category~~vibhag:Switzerland ke log]] [[~~Category~~vibhag:Physicists]] [[~~Category~~vibhag:Mathematicians]] {{Link FA\|en}} Rekha 50: [[am:ላዮናርድ ኦይለር]] [[an:Leonhard Euler]] [[ar:~~ليونهارد~~ليونهارت أويلر]] [[arz:ليونارد يولر]] [[az:Leonard Eyler]]

Leonhard Euler: ke revisions ke biich ke antar