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 Re: Help Me ! » A formula driving me crazy, need help please! » 2006-01-21 12:07:48
I will try to compute the absolute value somehow, you ruuuuuuuuuuuuuule!
nik
#2 Re: Help Me ! » A formula driving me crazy, need help please! » 2006-01-21 12:04:09
mathsyperson wrote:
How about |X| ÷ X?
That formula will give 1 if X is positive, -1 if X is negative and won't work if X is 0.
Excuse my ignorance, but if i do X ÷ X I get 1 if X is positive, but if X is negative I still get 1, unless |X| means absolute value which I am not sure it will be recognized on a computer.
I appreciate your help
nik
#3 Help Me ! » A formula driving me crazy, need help please! » 2006-01-21 11:17:57
- nikad
- Replies: 10
I have the following:
a-b=X
I need one single formula (that uses only addition, substraction, multiplication or division) where if X is a positive number the result will be 1 and if X is a negative number the result will be -1 or 0
Is this possible?
Thanx in advance!
nik
Pages: 1