John F. X. McGohey died in 1972.
John F. X. McGohey was born in 1894.
John F. X. Knasas was born in 1948.
F. X. Martin died in 2000.
J. F. X. O'Brien died in 1905.
John X of Constantinople died in 1206.
John F. X. Gillis has written: 'Jove laughs, they say' -- subject(s): Relations with women, Sexual behavior
Thomas F. X. Smith died on 1996-05-31.
John X. Merriman died on 1926-08-01.
John Stears went by The Dean of F/X, and The Real Q.
3 x f x f x f x f x f x f = 3f6
Suppose you wish to differentiate x/f(x) where f(x) is a differentiable function of x, and writing f for f(x) and f'(x) for the derivative of f(x), d/dx (x/f) = [f - x*f']/(f2)
John X of Schleswig-Holstein-Gottorp died on 1655-02-21.