IF & math formula student question

#1

I'm using the formula:
var
ship=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)
+2)+((total7/20)*2)),2)
to calculate shipping charges, it works perfect. Now, I want to modify this
formula so the minimum net result = 5 and the maximum = 30.

So if the calculated value equals less than 5, the result will be 5. If
exceeds 30, result will be 30.

I have tried different IF , <, > test permutations without success.

Any suggestions appreciated

#2

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:g2QQe.8923$Yh6.7258 (AT) fe04 (DOT) lga...

Quote:

I'm using the formula:
var
ship=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)
+2)+((total7/20)*2)),2)
to calculate shipping charges, it works perfect. Now, I want to modify
this
formula so the minimum net result = 5 and the maximum = 30.

So if the calculated value equals less than 5, the result will be 5. If
exceeds 30, result will be 30.

I have tried different IF , <, > test permutations without success.

Any suggestions appreciated

if(ship<5)
ship = 5;
else if(ship>30)
ship = 30;

huh?

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/>
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com>

#3

Huh....
I must have syntax problems. My below test looks good, but doesn't work.

var ship_amt=
round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
var ship
IF(ship_amt<5)
ship=5
else if(ship_amt>30)
ship=30
else ship=ship_amt

"Kimmo Laine" <eternal.erectionN0.5P (AT) Mgmail (DOT) com> wrote

Quote:

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:g2QQe.8923$Yh6.7258 (AT) fe04 (DOT) lga...
I'm using the formula:
var

ship=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)
+2)+((total7/20)*2)),2)
to calculate shipping charges, it works perfect. Now, I want to modify
this
formula so the minimum net result = 5 and the maximum = 30.

So if the calculated value equals less than 5, the result will be 5. If
exceeds 30, result will be 30.

I have tried different IF , <, > test permutations without success.

Any suggestions appreciated

if(ship<5)
ship = 5;
else if(ship>30)
ship = 30;

huh?

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com

#4

I must have syntax problems. My below test looks good, but doesn't work.

var ship_amt=
round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
var ship
IF(ship_amt<5)
ship=5
else if(ship_amt>30)
ship=30
else ship=ship_amt

"Kimmo Laine" <eternal.erectionN0.5P (AT) Mgmail (DOT) com> wrote

Quote:

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:g2QQe.8923$Yh6.7258 (AT) fe04 (DOT) lga...
I'm using the formula:
var

ship=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)
+2)+((total7/20)*2)),2)
to calculate shipping charges, it works perfect. Now, I want to modify
this
formula so the minimum net result = 5 and the maximum = 30.

So if the calculated value equals less than 5, the result will be 5. If
exceeds 30, result will be 30.

I have tried different IF , <, > test permutations without success.

Any suggestions appreciated

if(ship<5)
ship = 5;
else if(ship>30)
ship = 30;

huh?

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com

#5

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:%2_Qe.17075$ih4.15235 (AT) fe02 (DOT) lga...

Quote:

I must have syntax problems. My below test looks good, but doesn't work.

var ship_amt=
round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
var ship
IF(ship_amt<5)
ship=5
else if(ship_amt>30)
ship=30
else ship=ship_amt

Naturally the IF should be in lowercase, ie. if, but I assume that's just a
typo. You might try debugging it with alerts. So let's modify the code a
bit.

var ship_amt=
round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
alert( "1: " + ship_amt );
var ship
if( ship_amt < 5 ){
ship = 5;
alert("2: amount less than 5. " + ship);
} else if( ship_amt > 30 ) {
ship = 30;
alert( "3: amount more than 30. " + ship );
} else
ship = ship_amt;
alert( "4: amount between 5 and 30. " + ship );
}

See which alerts are triggered...

Out of curiosity: what does the round function do? Since it's not the
javascript native Math.round, does it come from your own function library? I
assume it has enhanced functionality in rounding to certain decimal, since
your giving it a second parameter which would seem like the precision to
me...

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/>
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com>

#6

Ok its working like this:

var
ship_amt=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20
)*2)+2)+((total7/20)*2)),2)
var ship
if(ship_amt < 5)
ship = 5;
else if(ship_amt > 30)
ship = 30;
else
ship = ship_amt;

It didn't like the Alerts. Are the semi-colons important? I was using
lower case "if" in my tests.

function round(number,X) {return
Math.round(number*Math.pow(10,X))/Math.pow(10,X)}
Used with 2 assures two decimal place Cents, very important to PayPal
submission I hear(my next hurdle).

Thank you very very much.

"Kimmo Laine" <eternal.erectionN0.5P (AT) Mgmail (DOT) com> wrote

Quote:

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:%2_Qe.17075$ih4.15235 (AT) fe02 (DOT) lga...
I must have syntax problems. My below test looks good, but doesn't work.

var ship_amt=

round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
var ship
IF(ship_amt<5)
ship=5
else if(ship_amt>30)
ship=30
else ship=ship_amt

Naturally the IF should be in lowercase, ie. if, but I assume that's just
a
typo. You might try debugging it with alerts. So let's modify the code a
bit.

var ship_amt=

round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)+2)+(
(total7/20)*2)),2)
alert( "1: " + ship_amt );
var ship
if( ship_amt < 5 ){
ship = 5;
alert("2: amount less than 5. " + ship);
} else if( ship_amt > 30 ) {
ship = 30;
alert( "3: amount more than 30. " + ship );
} else
ship = ship_amt;
alert( "4: amount between 5 and 30. " + ship );
}

See which alerts are triggered...

Out of curiosity: what does the round function do? Since it's not the
javascript native Math.round, does it come from your own function library?
I
assume it has enhanced functionality in rounding to certain decimal, since
your giving it a second parameter which would seem like the precision to
me...

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com

#7

"Edward" <nomail (AT) yahoo (DOT) com> kirjoitti
viestissä:BY_Qe.17096$ih4.6418 (AT) fe02 (DOT) lga...

Quote:

Ok its working like this:

var
ship_amt=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20
)*2)+2)+((total7/20)*2)),2)
var ship
if(ship_amt < 5)
ship = 5;
else if(ship_amt > 30)
ship = 30;
else
ship = ship_amt;

I don't know what you are doing differently, it looks just the same to me,
but good thing if it is finally working.

Quote:

It didn't like the Alerts.

Well, that's just too bad then. I really whish they could've been friends.

Quote:

Are the semi-colons important?

In my opinion: yes - when it comes to good programming practise and writing
readable code. It just clears things up when you definately see where a
statement ends.
In the scripts opinion: no - semicolons are optional. One line is one line
of code and that's that.

Quote:

I was using
lower case "if" in my tests.

That's what I thought.

Quote:

function round(number,X) {return
Math.round(number*Math.pow(10,X))/Math.pow(10,X)}

I expected just something like that.

Quote:

Used with 2 assures two decimal place Cents, very important to PayPal
submission I hear(my next hurdle).

You might get cought in this: round(4,2) returns '4', not '4.00' even if you
use your own round function. How to format even numbers to have the zeros
presented. that's a tricky one...

--
SETI @ Home - Donate your cpu's idle time to science.
Further reading at <http://setiweb.ssl.berkeley.edu/>
Kimmo Laine <eternal.erectionN0 (AT) 5P4Mgmail (DOT) com>

#8

On 2005-08-30, Edward <nomail (AT) yahoo (DOT) com> wrote:

Quote:

I'm using the formula:
var

ship=round((((total1/20)*2)+((total2/20)*2)+((total3/20)*2)+(((total6/20)*3)
+2)+((total7/20)*2)),2)
to calculate shipping charges, it works perfect. Now, I want to modify this
formula so the minimum net result = 5 and the maximum = 30.

So if the calculated value equals less than 5, the result will be 5. If
exceeds 30, result will be 30.

do the above working computation, then do this

ship=(ship<5)?5

ship>30)?30:ship;

Quote:

I have tried different IF , <, > test permutations without success.

or you could use if

if(ship<5)ship=5;if(ship>30)ship=30;

Quote:

Any suggestions appreciated

javascript is case sensitive -- IF is not the same as if

Bye.
Jasen