Math Is Fun Forum
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#201 2014-12-13 04:00:57
- David
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- From: Bumpkinland
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Re: Teach David
Yup.
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#202 2014-12-13 04:05:25
- bobbym
- bumpkin
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Re: Teach David
Do you know the math stuff about a function?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#203 2014-12-13 04:12:15
- David
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Re: Teach David
nope
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#204 2014-12-13 04:13:55
Re: Teach David
Functions are small code snippets or things that you want to use several times. They take an input and give an output
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#205 2014-12-13 04:15:24
- bobbym
- bumpkin
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- Posts: 109,606
Re: Teach David
Alright, we will cover it as we go.
A function definition in m ids written like this.
f[n_]:=n^2
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#206 2014-12-13 04:16:26
- David
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- From: Bumpkinland
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- Posts: 3,164
Re: Teach David
k
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#207 2014-12-13 04:16:46
Re: Teach David
Id in english is written as is
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#208 2014-12-13 04:18:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
I corrected it.
In f[n_]:=n^2, f is called the head and n is the argument.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#209 2014-12-13 04:22:19
- David
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- From: Bumpkinland
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Re: Teach David
okay
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#210 2014-12-13 04:24:54
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
F and n are arbitrary and we can choose other ones. The stuff on the right is the function definition, in In f[n_]:=n^2 that would be n^2.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#211 2014-12-13 04:26:18
- David
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- From: Bumpkinland
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Re: Teach David
Ugh. You have any idea why m is constantly not responding?
Oh I see.
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#212 2014-12-13 04:28:13
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
Got it working.
Enter into a cell f[n_]:=n^2
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#213 2014-12-13 04:29:30
- David
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- From: Bumpkinland
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- Posts: 3,164
Re: Teach David
Okay, it said construct pure function.
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#214 2014-12-13 04:31:21
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
Okay, now try this f[5]
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#215 2014-12-13 04:32:01
- David
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Re: Teach David
It's 25
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#216 2014-12-13 04:33:11
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
What happened was whatever you put in was squared 5 -> 5^2 = 25.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#217 2014-12-13 04:34:05
- David
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- From: Bumpkinland
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Re: Teach David
I see
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#218 2014-12-13 04:36:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
Try f[10], f[5+2] and f[n].
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#219 2014-12-13 04:37:14
- David
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- From: Bumpkinland
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- Posts: 3,164
Re: Teach David
I did
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#220 2014-12-13 04:37:44
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
What did you get?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#221 2014-12-13 04:40:12
- David
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- From: Bumpkinland
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Re: Teach David
100, 49, n^2
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#222 2014-12-13 04:41:01
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
How about f[(x+1)]?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#223 2014-12-13 04:42:57
- David
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Re: Teach David
(1+x)^2
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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#224 2014-12-13 04:44:45
- bobbym
- bumpkin
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- Registered: 2009-04-12
- Posts: 109,606
Re: Teach David
That is correct. We should examine the difference between n_ and n. Define this function: g[n]:=n^2
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#225 2014-12-13 04:47:23
- David
- Member
- From: Bumpkinland
- Registered: 2014-04-23
- Posts: 3,164
Re: Teach David
i did
His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.
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