When I search Google to give me different methods to generate a random number between -1 and 1 using:
rand between -1 and 1 ruby
it gives me did not find any documents. Anyone know why? Seems like a basic search query to me.
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1try: rand between "-1" and "1" ruby. minus sigh in googe query basically excludes following word/statement from search results. so you are excluding "1" – LorDex Sep 23 '15 at 13:44
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this really belongs on webapps or superuser, it's not a programming problem. – Mousey Sep 27 '15 at 01:25
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[Here](http://www.1stwebdesigner.com/how-to-use-google-pro-tips-tricks/) is something useful to get you started using Google Search. – rbaleksandar Sep 27 '15 at 02:06
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The minus sign operator in a Google search is saying "exclude", so you're saying "exclude 1 and include 1", so zero results.
Similarly, if you want to exclude a word entirely, you can add a dash before it—like
justin bieber -sucksif you want sites that only speak of Justin Bieber in a positive light.
As to the question you're searching for, check this out... -How to get a random number in Ruby
