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#1 2010-03-20 01:03:33
How to put advanced math functions into Scratch
Side-note: I've been in math mood lately!
____________________________________________________________________________________
Complete Gamma function:
Raise to power:
10 ^ ( exponent * log( number ) )
I will add more when I find more ways to put advanced math functions into Scratch.
Last edited by ThePCKid (2010-03-24 19:53:31)
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#2 2010-03-20 09:25:35
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#4 2010-03-20 11:04:36
Re: How to put advanced math functions into Scratch
How about:
(base and coefficient are both user-changeable)
If you want it done right.
Last edited by Greatdane (2010-03-20 11:05:18)
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#5 2010-03-20 11:56:28
- juststickman
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- Registered: 2009-05-31
- Posts: 1000+
Re: How to put advanced math functions into Scratch
Greatdane wrote:
How about:
http://i41.tinypic.com/245ee6w.gif
(base and coefficient are both user-changeable)
If you want it done right.
I'm confused, what is that, "^"?
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#6 2010-03-20 12:47:07
Re: How to put advanced math functions into Scratch
juststickman wrote:
Greatdane wrote:
How about:
http://i41.tinypic.com/245ee6w.gif
(base and coefficient are both user-changeable)
If you want it done right.I'm confused, what is that, "^"?
That script: raising to a power
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#10 2010-03-24 19:54:01
Re: How to put advanced math functions into Scratch
nXIII wrote:
BTW the gamma function will always return 0 >.>
Because the result starts at 0.
Oops...
fixed
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#11 2010-03-25 06:19:58
- markyparky56
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- Registered: 2008-03-20
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Re: How to put advanced math functions into Scratch
im a bit out of my depth at the moment, what do all these things do?
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#12 2010-03-25 12:06:09
- juststickman
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- Registered: 2009-05-31
- Posts: 1000+
Re: How to put advanced math functions into Scratch
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
Well the (10^ (log ( )) is raisin to the power of...
The rest I haven't learned yet.
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#13 2010-03-25 12:29:50
- markyparky56
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- Registered: 2008-03-20
- Posts: 1000+
Re: How to put advanced math functions into Scratch
juststickman wrote:
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
Well the (10^ (log ( ) ) is raisin to the power of...
The rest I haven't learned yet.
there is no ( () ^ () ) blocks in scratch though...
Last edited by markyparky56 (2010-03-25 12:30:02)
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#14 2010-03-25 13:56:55
- juststickman
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- Registered: 2009-05-31
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Re: How to put advanced math functions into Scratch
markyparky56 wrote:
juststickman wrote:
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
Well the (10^ (log ( ) ) is raisin to the power of...
The rest I haven't learned yet.there is no ( () ^ () ) blocks in scratch though...
That is why we have to use 10^ log
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#15 2010-03-25 14:22:38
Re: How to put advanced math functions into Scratch
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
OK, the log function is very interesting because it basically reduces operations to a lower level (multiplication becomes addition and powers become multiplication). We're basically reducing the x^y to 10^(log(x) * y). See the similarity? The number goes in the log and the power stays outside but is reduced to multiplication. We use '10^( )' because log returns a value (let's call it x) that makes this true: 10^(log(x) ) = x because it is the base 10 logarithm.
Sorry if I messed up somewhere...
Last edited by nXIII (2010-03-25 14:23:27)
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#16 2010-03-26 00:16:22
- billyedward
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- Registered: 2008-01-03
- Posts: 500+
Re: How to put advanced math functions into Scratch
ThePCKid wrote:
Side-note: I've been in math mood lately!
____________________________________________________________________________________
Complete Gamma function:
http://i39.tinypic.com/ajvu6q.gif
Raise to power:
10 ^ ( exponent * log( number ) )
I will add more when I find more ways to put advanced math functions into Scratch.
Neat!
You can see the exponentials in action in this project, if anyone is confused.
"I'd love to change the world, but they haven't released the source code yet."
Check out the latest version of Streak --> http://billy.scienceontheweb.net/Streak
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#17 2010-03-26 08:08:39
- markyparky56
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- Registered: 2008-03-20
- Posts: 1000+
Re: How to put advanced math functions into Scratch
nXIII wrote:
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
OK, the log function is very interesting because it basically reduces operations to a lower level (multiplication becomes addition and powers become multiplication). We're basically reducing the x^y to 10^(log(x) * y). See the similarity? The number goes in the log and the power stays outside but is reduced to multiplication. We use '10^( )' because log returns a value (let's call it x) that makes this true: 10^(log(x) ) = x because it is the base 10 logarithm.
Sorry if I messed up somewhere...
So
But there is no ^ part, o how do you get that in scratch? Do you do
(x)*(Log( (X*Y) ) ?
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#18 2010-03-26 12:52:33
- markyparky56
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- Registered: 2008-03-20
- Posts: 1000+
Re: How to put advanced math functions into Scratch
markyparky56 wrote:
nXIII wrote:
markyparky56 wrote:
im a bit out of my depth at the moment, what do all these things do?
OK, the log function is very interesting because it basically reduces operations to a lower level (multiplication becomes addition and powers become multiplication). We're basically reducing the x^y to 10^(log(x) * y). See the similarity? The number goes in the log and the power stays outside but is reduced to multiplication. We use '10^( )' because log returns a value (let's call it x) that makes this true: 10^(log(x) ) = x because it is the base 10 logarithm.
Sorry if I messed up somewhere...So
But there is no ^ part, o how do you get that in scratch? Do you do
(x)*(Log( (X*Y) ) ?
Ok, sorry, iv found out you do it now.
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