## can these formulas (excel) be converted to calculate on a pdf form

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Jul 21, 2018

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these are the formulas

3 separate cells

=ROUND((10^7.96427)*10^((-1628.445/(T24+273.15)))*10^((-100151/(T24+273.15)^2)),2)

=ROUND((10^7.96427)*10^((-1628.445/(T25+273.15)))*10^((-100151/(T25+273.15)^2)),2)

=(Y27-(0.00066*760*(T24-T25)*(1+(0.00115*T25))))/Y26

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Acrobat SDK and JavaScript, Windows

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## can these formulas (excel) be converted to calculate on a pdf form

New Here ,
Jul 21, 2018

Copied

these are the formulas

3 separate cells

=ROUND((10^7.96427)*10^((-1628.445/(T24+273.15)))*10^((-100151/(T24+273.15)^2)),2)

=ROUND((10^7.96427)*10^((-1628.445/(T25+273.15)))*10^((-100151/(T25+273.15)^2)),2)

=(Y27-(0.00066*760*(T24-T25)*(1+(0.00115*T25))))/Y26

TOPICS
Acrobat SDK and JavaScript, Windows

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176

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Jul 21, 2018 0
7 Replies 7
Jul 21, 2018

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Yes they can. JavaScript uses the same symbols for the 4 basic arithmetic operations, uses the Math.exp() method for all exponentiation. JavaScript even includes the "if ... else" statement for conditional execution of blocks of code. Unlike Excel which has an error condition for division by zero, JavaScript does not, so one must test for a zero divisor and skip the action..

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Jul 21, 2018 0
New Here ,
Jul 21, 2018

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i unfortunately have no experience writing javascript.

i tired a in the example below but could not get the proper calculation

event.value=Math.exp((10^7.96427)*10^((-1628.445/(WBC+273.15)))*10^((-100151/(WBC+273.15)^2)),2)

event.value=Math.exp((10^7.96427)*10^((-1628.445/(DBC+273.15)))*10^((-100151/(DBC+273.15)^2)),2)

Y27-(0.00066*760*(T24-T25)*(1+(0.00115*T25))))/Y26

Where have i gone wrong?

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Jul 21, 2018 0
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Jul 21, 2018

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ultimately i would like to calculate relative humidity from dry bulb and wet bulb temperature. there are a couple different ways to calculate, however can not get any proper calculation as i am javascript illiterate. attached original formulas and an excel sheet that does what i need (formulas imbedded)

any help would be muchly appreciated.

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Jul 21, 2018 0
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Jul 21, 2018

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First of all, check the JS Console and you'll see some error messages. The first one will be probably be something like this:

 ReferenceError: WBC is not defined1:Console:Exec

That happens because there's no variable called WBC. You can't access the value of a field directly. You need to use the getField method, and then the value property, like this:

var WBC = this.getField("WBC").value;

And if you want to make sure it's a number, use this:

var WBC = Number(this.getField("WBC").value);

Make those changes and try again. Check if there still error messages in the Console, and repeat...

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Jul 21, 2018 0
Jul 21, 2018

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You might want to use the Math.pow() method.

Syntax

Math.pow(base, exponent)

Parameters

base

The base number.

exponent

The exponent used to raise the base.

Return value

A number representing the given base taken to the power of the given exponent.

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Jul 21, 2018 0
New Here ,
Jul 21, 2018

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thank you for this but it looks like its way over my head, anyone care to take a crack at it?

i will try my best to post existing formulas from excel with explainations

will be calculated from 3 separate text fields

text field - es

=ROUND((10^7.96427)*10^((-1628.445/(dbr+273.15)))*10^((-100151/(dbr+273.15)^2)),2)

text field - ew

=ROUND((10^7.96427)*10^((-1628.445/(wbr+273.15)))*10^((-100151/(wbr+273.15)^2)),2)

text field - e

=(es-(0.00066*760*(dbr-wbr)*(1+(0.00115*wbr))))/ew

text fields dbr and wbr could have any number between 0 to 130

any help would be great!

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Jul 21, 2018 0
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Jul 22, 2018

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You are clearly not writing JavaScript. JavaScript is an object orientated language. That means you have an object and that object can have various properties beyond the value. So you cannot write code as one does within a cell in Excel. I have looked at your locked worksheet and the formulas that you have posted. It is clear the data used in your formulas is coming from cells that I cannot view.

There free and pay for resources for learning JavaScript for Acrobat.

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Jul 22, 2018 0