The History of "i" [modified]
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You know the ubiqious "i" found in almost every example of a for loop for newbies? On another forum were having this disscussion (sorta)... I said (I believe I read it in an C K&R book) that it's because it's simply an alias for Index which is what "i" is usually doing in a for loop...?? Someone else says it has to do with: They are from general Summation Notation that, like many other mathmatical notations, worked its way into early languages -- specifically Fortran (remember its FORMula TRANSlation) I never would have guessed :P Cheers :) It's frustrating being a genius and living the life of a moron!!! -- modified at 21:18 Wednesday 4th October, 2006
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Vikram A Punathambekar wrote:
What do you mean by "the times there was no i"?
'i' is a very recent letter. Discovered in 1984 by a French astrologer I believe :rolleyes:
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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I thought i/j/k were commonly used in mathematical circles, and so they just moved in to code. Christian Graus - Microsoft MVP - C++
i is reserved for sqrt(-1) cheers, Chris Maunder
CodeProject.com : C++ MVP
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Rage wrote:
"i" like "i"nteger, or "s" like "s"tring
Much like hungarian notation, which I happen to like (I'm not hungarian), but am slowly being converted to camelCase (I'm not a camel either).
- S 50 cups of coffee and you know it's on!
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i is reserved for sqrt(-1) cheers, Chris Maunder
CodeProject.com : C++ MVP
Chris Maunder wrote:
i is reserved for sqrt(-1)
We're not going to start this discussion again...are we? :~
They dress you up in white satin, And give you your very own pair of wings In August and Everything After
I'm after everything
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I normally throw spaghetti up against the wall. Then, when I see an interesting pattern, I write it down. And that's how I discover new letters. Coming up with the pronunciation for those letters is a little difficult though. :rolleyes:
They dress you up in white satin, And give you your very own pair of wings In August and Everything After
I'm after everything
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I normally throw spaghetti up against the wall. Then, when I see an interesting pattern, I write it down. And that's how I discover new letters. Coming up with the pronunciation for those letters is a little difficult though. :rolleyes:
They dress you up in white satin, And give you your very own pair of wings In August and Everything After
I'm after everything
David Stone wrote:
Coming up with the pronunciation for those letters is a little difficult though.
Give the spaghetti to someone who eats with their mouth open and listen to the interesting sounds that emerge :)
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Rage wrote:
"i" like "i"nteger, or "s" like "s"tring
Much like hungarian notation, which I happen to like (I'm not hungarian), but am slowly being converted to camelCase (I'm not a camel either).
- S 50 cups of coffee and you know it's on!
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Chris Maunder wrote:
i is reserved for sqrt(-1)
We're not going to start this discussion again...are we? :~
They dress you up in white satin, And give you your very own pair of wings In August and Everything After
I'm after everything
David Stone wrote:
We're not going to start this discussion again...are we?
What discussion? :-O
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Steve Echols wrote:
I'm not a camel either
:laugh: Are you sure?
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
:laugh: No humps! Just double checked. Although...hunching over my monitor might give me a "single" in a couple more years. :)
- S 50 cups of coffee and you know it's on!
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Chris Maunder wrote:
i is reserved for sqrt(-1)
We're not going to start this discussion again...are we? :~
They dress you up in white satin, And give you your very own pair of wings In August and Everything After
I'm after everything
Quit being irrational!:laugh:
The enemy's gate is down. :cool: Welcome to CP in your language. Post the unicode version in My CP Blog[^] now.
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This brings back memories from the times there was no i.
FOR n=0 TO 5 ... NEXT n:) regards, Mircea Many people spend their life going to sleep when they’re not sleepy and waking up while they still are.So you also programmed on ZX Spectrum :)
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Quit being irrational!:laugh:
The enemy's gate is down. :cool: Welcome to CP in your language. Post the unicode version in My CP Blog[^] now.
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The possibilities are transcendental when you get David and Ryan going on Mathematics. Add in Chris and well... somehow it all equals "i" in the end...:laugh:
The enemy's gate is down. :cool: Welcome to CP in your language. Post the unicode version in My CP Blog[^] now.
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i is reserved for sqrt(-1) cheers, Chris Maunder
CodeProject.com : C++ MVP
I think I reserved i for 2 people at 7:00. :doh:
The enemy's gate is down. :cool: Welcome to CP in your language. Post the unicode version in My CP Blog[^] now.
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You know the ubiqious "i" found in almost every example of a for loop for newbies? On another forum were having this disscussion (sorta)... I said (I believe I read it in an C K&R book) that it's because it's simply an alias for Index which is what "i" is usually doing in a for loop...?? Someone else says it has to do with: They are from general Summation Notation that, like many other mathmatical notations, worked its way into early languages -- specifically Fortran (remember its FORMula TRANSlation) I never would have guessed :P Cheers :) It's frustrating being a genius and living the life of a moron!!! -- modified at 21:18 Wednesday 4th October, 2006
ok , but why no f in cake ?
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i is reserved for sqrt(-1) cheers, Chris Maunder
CodeProject.com : C++ MVP
Chris Maunder wrote:
i is reserved for sqrt(-1)
It depends. In electrical engineering, i is reserved for alternate current and, hence, we use j to refer to sqrt(-1). Francisco Silver at last!!
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You know the ubiqious "i" found in almost every example of a for loop for newbies? On another forum were having this disscussion (sorta)... I said (I believe I read it in an C K&R book) that it's because it's simply an alias for Index which is what "i" is usually doing in a for loop...?? Someone else says it has to do with: They are from general Summation Notation that, like many other mathmatical notations, worked its way into early languages -- specifically Fortran (remember its FORMula TRANSlation) I never would have guessed :P Cheers :) It's frustrating being a genius and living the life of a moron!!! -- modified at 21:18 Wednesday 4th October, 2006
It started here: n Σ i=0 the mathematical equivalent to:
for (i = 0; i <= n; i++) {
}Note the terminating condition, as the mathematical expression Σ includes the terminating value.
Software Zen:
delete this; -
Chris Maunder wrote:
i is reserved for sqrt(-1)
It depends. In electrical engineering, i is reserved for alternate current and, hence, we use j to refer to sqrt(-1). Francisco Silver at last!!
You do realise that as a mathematician it's my duty to insert lots of engineer jokes, right? ;) I'll let you off with a warning this time. cheers, Chris Maunder
CodeProject.com : C++ MVP
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You know the ubiqious "i" found in almost every example of a for loop for newbies? On another forum were having this disscussion (sorta)... I said (I believe I read it in an C K&R book) that it's because it's simply an alias for Index which is what "i" is usually doing in a for loop...?? Someone else says it has to do with: They are from general Summation Notation that, like many other mathmatical notations, worked its way into early languages -- specifically Fortran (remember its FORMula TRANSlation) I never would have guessed :P Cheers :) It's frustrating being a genius and living the life of a moron!!! -- modified at 21:18 Wednesday 4th October, 2006
Hockey wrote:
But is it true? Am I rememering wrong?
"i" because it's automatically treated as an integer in Fortran--the first of several automatic integer variables, followed by "j", "k", "l", etc. I can't remember how many letters are allocated to be integers. Marc Pensieve Functional Entanglement vs. Code Entanglement Static Classes Make For Rigid Architectures Some people believe what the bible says. Literally. At least [with Wikipedia] you have the chance to correct the wiki -- Jörgen Sigvardsson
