One of his most important contributions to mathematics was editing the collected works of Euler . Rudio proposed the project in 1883 since this was the centenary of Euler 's death.
Isa ng kanyang mga pinaka-mahalagang kontribusyon sa matematika ay na-edit ang nakolekta gumagana ng Euler. Rudio iminungkahi ang proyekto sa 1883 dahil ito ay ang sentenaryo ng Euler 's kamatayan.