use Euler method y' = -2 x y, y(1) = 2, from 1 to 5 ...
https://www.wolframalpha.com/input/?i=use+Euler+method+y'+=+-2+x+y,+y(1...Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, ... use Euler method y' = -2 x y, y(1) = 2, from 1 to 5.