Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2011-12-22 15:40:00
- juantheron
- Member
- Registered: 2011-10-19
- Posts: 312
how many matrices
How many matrices, A, are there such that all the entries of A are either 0 or 1, exists, and all the entries of are either 0 or 1?
Offline
#2 2011-12-23 06:13:17
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,649
Re: how many matrices
hi juantheron,
Well it depends on the size of the matrix.
If it is n by m then it has nm elements.
Each may be 0 or it may be 1,
so that gives you
matrices.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
Offline
Pages: 1