How do I tell Wolfram Alpha that I want the fourth derivative of y in a differential equation?

Question

For example, how would I enter y^(IV) - 16y = 0?

typing out fourth derivative, and putting four ' marks does not seem to work.

It seems to work for me? – Faraz Masroor Feb 16 '16 at 01:05 — Faraz Masroor, Feb 16 '16 at 01:05
Odd. Seems to work for everyone else. – Em. Feb 16 '16 at 01:09 — Em., Feb 16 '16 at 01:09

score 1 · Answer 1 · answered Feb 16 '16 at 01:07

1

answered Feb 16 '16 at 01:07

Adriano

score 0 · Answer 2 · edited Feb 16 '16 at 01:06

0

Input:

y''''[x]

edited Feb 16 '16 at 01:06

Em.

answered Feb 16 '16 at 01:04

Enrico M.

score 0 · Answer 3 · edited Feb 16 '16 at 01:13

0

The expression

solve y'''' - 16 y = 0 for y

seems to work.

edited Feb 16 '16 at 01:13

Em.

answered Feb 16 '16 at 01:08

mvw

3 Answers3