Need: Javascript to solve for X (proportionality)

[Paul J. Dudley]

I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

24 x 120.85 / 16 = X

X = 181.28

Does anyone have such ... or anything like it that I might
play with to do the same ?

= Paul =

[Evertjan.]

Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:

>
I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

24 x 120.85 / 16 = X

X = 181.28

Does anyone have such ... or anything like it that I might
play with to do the same ?

Why would you "need" that?
A school assignment?
What code dit you make sofar?
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Thomas 'PointedEars' Lahn]

Paul J. Dudley wrote:

I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

24 x 120.85 / 16 = X

X = 181.28

Does anyone have such ... or anything like it that I might
play with to do the same ?

Wrong newsgroup, try alt.school.homework-help.
PointedEars

[Paul J. Dudley]

On Thu, 23 Aug 2007 19:37:12 +0000, Evertjan. wrote:

Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:

>>
I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

24 x 120.85 / 16 = X

X = 181.28

Does anyone have such ... or anything like it that I might
play with to do the same ?

Why would you "need" that?
A school assignment?
What code dit you make sofar?

I have no code so far. I am JS illiterate. I do a little hacking of
existing scripts when needed, but have never created from scratch.
I used to get JSs from a JS site, but nothing I can use for my purpose.

There are 5 of us who work for the same company and it would give us
a rough idea of how much take home pay we can expect given a certain
amount of hours worked. We all make the same low wages, so we can compare
against hrs worked vs amount paid previously. The numbers used were just
for analogy sake.

= Paul =

[Evertjan.]

Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:

On Thu, 23 Aug 2007 19:37:12 +0000, Evertjan. wrote:

>Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:

>>>
I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

24 x 120.85 / 16 = X

X = 181.28

Does anyone have such ... or anything like it that I might
play with to do the same ?

A school assignment?
What code dit you make sofar?

I have no code so far. I am JS illiterate. I do a little hacking of
existing scripts when needed, but have never created from scratch.
I used to get JSs from a JS site, but nothing I can use for my
purpose.

There are 5 of us who work for the same company and it would give us
a rough idea of how much take home pay we can expect given a certain
amount of hours worked. We all make the same low wages, so we can
compare against hrs worked vs amount paid previously. The numbers
used were just for analogy sake.

Ask yourself:
What is the input format?
What are constants, what are input dependent variables?
What is the output format?
Then look at the Javascript FAQ of this NG and start learing.

Q not answered yet:

>Why would you "need" that?

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Paul J. Dudley]

On Thu, 23 Aug 2007 20:08:54 +0000, Evertjan. wrote:

Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:

>On Thu, 23 Aug 2007 19:37:12 +0000, Evertjan. wrote:

>>Paul J. Dudley wrote on 23 aug 2007 in comp.lang.javascript:
I need a javascript to solve for X as in the following:

120.85 X
----- = ---
16 24

:
etc
:

>
Q not answered yet:

>>Why would you "need" that?

There are 5 of us who work for the same company and it would give us
a rough idea of how much take home pay we can expect given a certain
amount of hours worked. We all make the same low wages, so we can compare
against hrs worked vs amount paid previously. The numbers used were just
for analogy sake.

As for the FAQ, I believe I inadvertently deleted it ( without knowing ).

= Paul =

[Thomas 'PointedEars' Lahn]

Paul J. Dudley wrote:

I have no code so far. I am JS illiterate. I do a little hacking of
existing scripts when needed, but have never created from scratch.
I used to get JSs from a JS site, but nothing I can use for my purpose.

It would seem that your problem is not JS, but a lack of programming skills.
Here you are:

window.alert("X = " + 120.85 * 24 / 16);

Beware of the precision error that comes with using IEEE-754 doubles.

http://jibbering.com/faq/
PointedEars
--
Prototype.js was written by people who don't know javascript for people
who don't know javascript. People who don't know javascript are not
the best source of advice on designing systems that use javascript.
-- Richard Cornford, cljs, <f8*******************@news.demon.co.uk>

[Paul J. Dudley]

On Thu, 23 Aug 2007 22:21:26 +0200, Thomas 'PointedEars' Lahn wrote:

Paul J. Dudley wrote:

> I have no code so far. I am JS illiterate. I do a little hacking of
existing scripts when needed, but have never created from scratch.
I used to get JSs from a JS site, but nothing I can use for my purpose.

It would seem that your problem is not JS, but a lack of programming skills.
Here you are:

window.alert("X = " + 120.85 * 24 / 16);

Beware of the precision error that comes with using IEEE-754 doubles.

http://jibbering.com/faq/
PointedEars

Thanks for the pointer ..

= Paul =