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#81640 - 2003-05-23 08:59 AM The Math Functions Wishlist... Part I - The List
Jochen Administrator Offline
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Think it was mentioned before, but regarding the 'new' possibilities with kixforms it's about time for some functionality enhancement (supporting floating point numbers was a step in the right direction) .... soooo ... how about intrinsic:

  • sin()
  • cos()
  • tan()
  • as well as their corresponding functions (asin() acos() atan() )
  • π (Pi as ummm ... a constant ?)
  • e (as well)
  • pwr() (supporting floating point operations of course)
  • sqrt() (cdbl-enabled as well)
functions ?
Anyone else to enhance this list ?
{Maybe some statistical functions for MCA ? [Big Grin] }
IF YOU FEEL LIKE TALKING ABOUT THAT, PLEASE GO HERE

[ 26. May 2003, 09:59: Message edited by: Jochen ]
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#81641 - 2003-06-02 10:23 PM Re: The Math Functions Wishlist... Part I - The List
Bryce Offline
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you looking for internal kixtart.exe support or UDF's?

UDF's might make for interesting projects [Smile]

I know when I made this SQRT() it was a learning experience to say the least.

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#81642 - 2003-06-02 10:31 PM Re: The Math Functions Wishlist... Part I - The List
Jochen Administrator Offline
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Ummm ... intrinsic is the word here

Or can you riddle this? :

$x = sqrt(42.23)

[Wink]
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#81643 - 2003-06-02 10:38 PM Re: The Math Functions Wishlist... Part I - The List
Bryce Offline
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err.... using the above SQRT() function I get this.

code:
$x = sqrt(42.23)
? $x

6.49846135635198

my trusty MS calculator gives me
6.4984613563519788003088119713467

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#81644 - 2003-06-02 10:45 PM Re: The Math Functions Wishlist... Part I - The List
Jochen Administrator Offline
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[Roll Eyes]

Sure, sorry!

It was of course the pwr() thing I played with some time later that is only with pain to get cdbl-aware...

Not to speak of sin() etc.

[ 02. June 2003, 22:47: Message edited by: Jochen ]
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#81645 - 2003-06-02 10:59 PM Re: The Math Functions Wishlist... Part I - The List
Bryce Offline
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you mean this? Link

code:
;42.23^4
$x = sqr(42.23,4)
? $x

3180418.90045441

ms calc returns = 3180418.90045441

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#81646 - 2003-06-02 11:05 PM Re: The Math Functions Wishlist... Part I - The List
Bryce Offline
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those are the only 2 that I have done.... but i am sure that the others can be done too.
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#81647 - 2003-06-02 11:11 PM Re: The Math Functions Wishlist... Part I - The List
Jochen Administrator Offline
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Fair Cop,

but how about :

42.23^4.7

The pain starts ...
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#81648 - 2003-06-02 11:20 PM Re: The Math Functions Wishlist... Part I - The List
Bryce Offline
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hmmmmmmm
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#81649 - 2005-08-31 03:41 AM Re: The Math Functions Wishlist... Part I - The List
Lonkero Administrator Offline
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ping pong.
can't forget Sqrt() nor Pow()
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#81650 - 2005-09-08 10:19 PM Re: The Math Functions Wishlist... Part I - The List
jtokach Offline
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Not quite as profound as what's listed above, but these math shortcuts would rock.

$x++
++$x
$x--
--$x
$x+=(expr)
etc., etc.
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#81651 - 2005-09-08 10:27 PM Re: The Math Functions Wishlist... Part I - The List
Lonkero Administrator Offline
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yes.
been waiting for someone to post a suggestion about these.
I'm totally with you about these!


Edited by Jooel (2005-09-08 10:27 PM)
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#81652 - 2005-09-08 10:58 PM Re: The Math Functions Wishlist... Part I - The List
Howard Bullock Offline
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jtokach ,Jooel wanted me to post those but I told him that they were too Perlish and I might get bashed. But I want them too.
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#81653 - 2005-09-08 11:07 PM Re: The Math Functions Wishlist... Part I - The List
Allen Administrator Online   shocked
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What does the double plus or minus signify?
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#81654 - 2005-09-08 11:08 PM Re: The Math Functions Wishlist... Part I - The List
jtokach Offline
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$x++

equals

$x=$x+1
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#81655 - 2005-09-08 11:11 PM Re: The Math Functions Wishlist... Part I - The List
jtokach Offline
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Quote:

jtokach ,Jooel wanted me to post those but I told him that they were too Perlish and I might get bashed. But I want them too.




It might be a nice change to get some C based crap in here vs. all the VB.
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#81656 - 2005-09-08 11:11 PM Re: The Math Functions Wishlist... Part I - The List
Allen Administrator Online   shocked
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ack! I'll pass. Aside from golf... what's the advantage?
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#81657 - 2005-09-09 12:36 AM Re: The Math Functions Wishlist... Part I - The List
jtokach Offline
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It's been around in C for +30 years; apparently those guys were super lazy too.

The only advantages that I could see, besides the lazy factor, are that it should be faster for the interpreter to simply increment the variable rather than setting the left side var equal to itself and then performing the math. And someone might benefit from the ability to choose weather to pre increment/decrement vs. post increment/decrement. I can't think of any examples off hand.

Obviously, these VB type For loops weren't built with this in mind. Consider in C:

for(hi=100,lo=0;hi>=lo;hi--,lo++)

This C For loop most accurately translates to a While statement in Kix.

$hi=100
$lo=0
While $hi>=$lo
$hi=$hi-1
$lo=$lo+1
Loop

Hmmm...
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#81658 - 2005-09-09 12:58 AM Re: The Math Functions Wishlist... Part I - The List
Lonkero Administrator Offline
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well, most importantly something like the code below will benefit:
Code:

$myTextFile = readFile("c:\pagefile.sys") ; you need to udf for this :p
$myTextFile = $myTextFile + "some text more"


consider moving around some hundreds of megabytes of crap.
when you could simply append the text with:
Code:

$myTextFile = readFile("c:\pagefile.sys") ; you need to udf for this :p
$myTextFile += "some text more"




pagefile.sys might not work as perfect example but you surely get the idea.
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#81659 - 2005-09-09 01:02 AM Re: The Math Functions Wishlist... Part I - The List
jtokach Offline
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Absolutely.
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