Många lösningar till Eulers fjärdegradsekvation

Mathematician Daniel J. Madden (University of Arizona) and retired physicist Lee W. Jacobi have found a way to generate an infinite number of solutions to Euler's "equation of degree four." All the solutions are very large numbers.

The problem, posed by Euler in 1772, was finding variables that satisfy the Diophantine equation a 4 + b 4 + c 4 + d 4 = (a + b + c + d) 4 .

Läs mer, [Mathematical Association of America] ...