• Subject: Re: Getting randomic integers
• From: bb <bblochl@...>
• Date: Sun, 17 Jan 2010 11:14:39 +0100

```bb schrieb:
```
```phlnc8 schrieb:
```
I could not understand how to get a trully randomic integer. Suppose I need
```50 randomic integers each time I call a function. Serching in
```
```
Assuming you want to print 50 uniform random integers between 0 and 100:

for i=1,50 do
print(math.floor(math.random()*100))
end

---
On Sat, Jan 16, 2010 at 5:12 PM, Luciano de Souza
<luchyanus@predialnet.com.br> wrote:
```
```Hi all,

```
I could not understand how to get a trully randomic integer. Suppose I need 50 randomic integers each time I call a function. Serching in documentation,
```I found two functions in Math module: math.random and math.randomseed.

The first one is not what I want. Calling it, I got always the same 50
```
numbers. In Pascal, before using random functions, it's necessary to call "randomize" which starts the randomic number generator. I don't know if it's
```also necessary in Lua.

But I try to use math.randomseed. The first tesst is:

print(math.randomseed(100))

print(math.randomseed(0, 100))

Despite no errors, I dindn't get anything. So I ask: how to obtain 50
different integers each time I call the randoms functions?

Luciano de Souza
```
```
```
```One correction:
```
Because of floor() You get numbers between 0 and 99. That might be important for some applications. One can see that in simulating a dice:
```
print(math.floor(math.random()*5)+1)

Regards BB

```
```One more correction: You get numbers between 0 and 90 only!

```