Simple math calculation in numbers

Hi I'm trying to do a simple calculation of 46.66*2 in numbers and i get a red triangle saying syntax error. Any light on this as what is wrong.

Hi Fuija,
Happy to help, and strangely enough, I just got a fresh cup of coffee.
Most issues are easier to solve when enough information is presented. Keep that in mind when you have another question.
As to using , as the decimal separator, it's not a Mac thing. That's dependent on where you live and what regional settings you've made in System Preferences. If you'd normally write ten thousand four hundred twenty-three and five hundredths like this:
10,423.05
Then your regional settings for numbers should show 1,234.56
and you should use a period as the decimal separator.
If you'd normally write that number this way:
10.423,05
Then your regional settings for numbers should show 1.234,56
and you should use a comma as the decimal separator.
Pick whichever region is set to use the same separators as you would use when writing the number with pencil on paper.
Regards,
Barry

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Simple Math Calculation is incorrect

I have seen this topic here before but cant find it. When I
do the following script it returns an incorrect value;
var myNumber = 999.43
trace(myNumber-999) //returns: 0.42999999999995
So how can I retrieve the value .43? I suppose I can do this;
var myNumber = 999.43
var hundred = myNumber*100;
var whole = hundred-99900;
trace(whole*.01) // returns: .43
But is there a better way? And why is it that Flash is
calculating like this?

the reason for the apparent error is because flash is
performing arithmetic on a binary computer. within the limits of
flash'es accuracy (16 digits),
0.42999999999995 = .43
to eliminate those errors, you can use integer arithmetic or
the flash string methods. integer arithmetic is probably preferable
if you're doing arithmetic operations.

I am using Numbers on my iPhone5 and cannot get the app to do a simple (SUM) calculation. It shows the formula correctly in the cell, but all I get for my long list of numbers to add is 0. How can I get this to work?

I am using Numbers on my iPhone5 and cannot get the app to do a simple (SUM) calculation. It shows the formula correctly in the cell, but all I get for my long list of numbers to add is 0. How can I get this to work?

Oaky, at least we got that far. Next step is to determine if all those "numbers" are really numbers. Changing the format to "number" doesn't necessarily change the string to a number. The string has to be in the form of a number. Some may appear to you and me as numbers but will not turn into "numbers" when you change the formatting from Text to Number. Unless you've manually formatted the cells to be right justified, one way to tell if it is text or a number is the justification. Text will be justified to the left, numbers will be justified to the right.
Here are some that will remain as strings:
+123
123 with a space after it.
.123

Simple Graphing Calculator with 2D array

Hello,
I am building a simple graphing calculator which reads in coefficients from a txt file. All is going well except when I plot the points, the graph is at the corner of the screen and sideways. As we all know, the origin of the array is at the top right corner, so how do I transform/slide it so that it is at the xy origin? Code is posted below, thanks!
import javax.swing.*;
import java.awt.*;
public class baseClass extends JFrame{
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          panel.addOval((short)x,(short)y,(short)1,(short)1);
          panel.repaint();
     private class shapesPanel extends JPanel{
          final private short max = 10000;
          private short[][] lines, ovals;
          private int numLines, numOvals;
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               ovals = new short[max][4];
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                    g.drawLine(lines[0],lines[i][1],lines[i][2],lines[i][3]);
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                    g.drawOval(ovals[i][0],ovals[i][1],ovals[i][2],ovals[i][3]);
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import java.util.Scanner;
import java.io.*;
public class graphingCalculator extends baseClass{
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     private double[] theFunction;
// CONTAINS THE DISCRETE FUNCTION PLOT
private boolean[][] grid;
// SIZE OF THE COORDINATE SYSTEM
private final int columns = 500, rows = 500;
public graphingCalculator(String filename) throws IOException{
     // INITIALIZATIONS ///////////////////////////////////////
super("GRAPHING CALCULATOR");
theFunction = new double[4];
     grid = new boolean[rows][columns];
for(int i = 0;i<rows;++i){
for(int j = 0;j<columns;++j){
grid[i][j] = false;
// DRAW THE COORDINATE SYSTEM ON THE SCREEN /////////////
drawLine(0,250,500,250);
drawLine(250,0,250,500);
for(int i = 0; i < columns;i+=20){
drawLine(i,247,i,253);
for(int i = 0; i < rows;i+=20){
drawLine(247,i,253,i);
// GET THE FUNCTION COEFFICIENTS ///////////////////////
// theFunction[0] will have the x^3 coefficient
// theFunction[1] will have the x^2 coefficient
// theFunction[2] will have the x^1 coefficient
// theFunction[3] will have the x^0 coefficient
Scanner scan1 = new Scanner(new File(filename));
for(int i=0;i<4;++i){
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scan1.close();
// DRAW THE FUNCTION ////////////////////////////////////
computeGrid();
drawDiscrete();
drawContinuous();
private double computeFunction(int x)
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     double c=theFunction[2];
     double d=theFunction[3];
     double answer=(a*Math.pow(x,3.0)+b*Math.pow(x,2.0)+c*Math.pow(x,1.0)+d*Math.pow(x,0.0));
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private void computeGrid()
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     for(int x=0; x<columns; x++)
               if(computeFunction(x)>=0&&computeFunction(x)<500)
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     for(int x=0;x<columns;x++)
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private void drawContinuous()
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Rest of code:
import java.util.Scanner;
import java.io.*;
public class Main {
    public static void main(String[] args) throws IOException{
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    //                  0.0
    //                  -5.0
    //                          50.0
    // CORRESPONDS TO FUNCTION: 0.01*X^3 - 5.0*X + 50.0
    // ANOTHER GOOD EXAMPLE:
    //                  0.0
    //                  0.01
    //                  -1.0
    //                          -100.0
    // CORRESPONDS TO FUNCTION: 0.01*X^2 - X - 100.0
    System.out.println("Please enter filename of input file: ");
    infile = scan.next();
    graphingCalculator cal = new graphingCalculator(infile);
}

Creating a form with a field that contains a simple math problem.

I am creating a form in Acrobat 9 Standard that contains a field that requires a simple math function (divide).
if (QuantityRow1 > 0)
ExtensionRow1 / QuantityRow1
Take the value input in ExtensionRow1 and divide it by the value in QuantityRow1. I have included an IF statement to prevent an error that occur if QuantityRow1 were equal to zero.
After inputting the data into the two fields I tab past the field where I expect to see my result and the field remains blank. I don't receive any error messages.
Any ideas? Thanks - jb

This is a duplicate of your question on Acrobatusers.com (
http://answers.acrobatusers.com/Need-simple-math-operation-function-Acrobat-9-Standard-cre ating-form-q142800.aspx
Did the information provided there not help you with your problem?
Karl Heinz Kremer
PDF Acrobatics Without a Net
PDF Software Development, Training and More...
[email protected]
http://www.khkonsulting.com

Simple Fact Calculation Help

Hi Team
I need help in creating a simple fact calculation. I need to create a fact column that should give the lastest transaction amount , if the type of the transacion is "DEBIT". for example if there 100 transactions are there, and out of that only 25 are DEBIT Transaction, I need the amount of the last (Most recent date's) DEBIT Transaction.
Please help me, what should be the calculation and the aggrecate setting of that fact column.
Our version is OBIEE 10.1.3.4.1
Thanks a lot for the help
With Regards
Bas

The analytics function that yo search is last.
Check here:
http://gerardnico.com/wiki/dat/obiee/last_first
Try to apply the last on only one dimension (ie time dimension) otherwise it can take a lot of time. Check the bad performance section of the article.
Cheers
Nico

About math calculation in form command

i want to know if we can do math calculation in script form's command line?i try it by using define command ,but cann't get the result,i have to make sure if the command line have the function of math calculation?

do ur calculations inside a subroutine and call ur subroutine in ur script.
check this wiki on how to use subroutines inside scripts
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/external%2bsubroutines%2bin%2bsap%2bscript

Calculated Column with simple math for price comparisons

Hi all,
I want to calculate a price difference from today's price versus the price of 5 days ago.
Please help me with a best practice for that. Is the use of calculated column in a calculation view the right approach? How can the price field of 5 days ago be addressed? Ideally 5 should be a constant which should be able to be changed to 6 or 7 for further simulations.
Thanks for any help.
Guenther

Hi Patter ,
For the above requirement we don't need a calculation view to be created. Check the code below, I am re creating the scenario with an INNER JOIN.
CREATE COLUMN TABLE "METALS_ONE_GEN"."TEST_TAB" (ID INTEGER,DATES DATE,PRICE INTEGER);
INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-03-10',50);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-03-15',50);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-03-25',100);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-03-20',80);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-03-30',75);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-04-04',150);
    INSERT INTO "METALS_ONE_GEN"."TEST_TAB" VALUES ( 1 , '2014-04-9',450);
select A.DATES,
       A.PRICE,
      ( B.PRICE - A.PRICE )
       from "METALS_ONE_GEN"."TEST_TAB" A
       INNER JOIN "METALS_ONE_GEN"."TEST_TAB" B
       ON
    B.DATES = ADD_DAYS(A."DATES",5) ;
Looks like, the JOIN operation is more optimized than the Calculation view in this case . Depends on the data , JOIN type may very .
Sreehari
Message was edited by: Sreehari V Pillai

Incorrect slope calculations in numbers

Hi all,
I posted this question before last fall and ended up walking away to just use Excel for the task instead.
Now, I HATE excel. And I still haven't fixed this - so I am going to ask again to see if I can prompt a fix for this or see if Im doing something wrong.
I am looking for the rate of change in data I am collecting for my company - specifically oxygen readings that permeate across a membrane and into a wine bottle.
I have day duration values in the x-axis, and oxygen in milligrams in the y Axis.
If I run the SLOPE(Y,X) I get one number - lets use one of my data series - the function returns 2.143
If I make a scatter plot of the same cells, the equation shows up as 2.481E-5x+2.5404
Very different numbers.
Using the same set of data in excel I get .089 in both the line equation as well as with the slope function.
The values in numbers niether match each-other, nor match the excel data.
I am tempted to trust the excel numbers because at least they are consistant.
I can email the sample numbers file to someone if they want to take a look at it.
I love how easy numbers is to use - but if it cant do the math right it is no use to me!

I did a simple test
X values = 2d , 4d, and 6d formatted as durations in column B
Y values = 2, 4, 6 in column C
SLOPE function returns 1, which is correct as I see it
Charted linear fit has a slope of 1.157e-5 which means it is converting the days to seconds
I changed the X format to hours.
SLOPE remained as 1, which means it always converts to days.
The charted formula remained the same, which means it always converts to seconds
Going with days as the correct unit, I created a one-celled plain table with the formula
="y="&ROUND(SLOPE(Table 1 :: C,Table 1 :: B),4)&"x +"&ROUND(INTERCEPT(Table 1 :: C,Table 1 :: B),4)
and placed it over the chart then unchecked "show equation" for the trendline. I also removed the gridlines from this little table and set the table fill color (which is not the same thing as the cell fill color) to none.
You may want to calculate the slope and intercept in your original table instead of calculating them in the one-cell table. That way you can format the numbers to have trailing zeros (if you want them). Then the formula would be more like
="y="&Table 1::D2&"x+"&Table 1::E2

Simple percentage calculation

Hello,
i am new to Numbers...i need to do something i think is very simple, but still can't figure out how to...
Basically i need to have a calculation of percentage.
Say in cell B2 i have a certain value, i would like to have cell C2 that calculate B2 value + the 20% of B2 value.
Would it be possible? Which formula should i use?
Or would i need to set C2 only as percentage value (20%), then set a SUM (B2+C2) formula in D2?
I've actually already tried all this, but i must make some formula editing errors...
Appreciate your help.
Max

Either if these will do the job:
=B+B*0.2
=B*1.2
"20 percent" is just a 'fancy' way of saying "20/100", and "20/100" expressed as a decimal is "0.20"
=B+B*20%
This will also work, but you will need to set the cell's format to display the result as a number. Set to Automatic, the cell will choose Percent to display the result.
Regards,
Barry

Simple Math Actions ( float, double... )

Hi guys, does anybody could help me with those
simple calculations ?
Take a look at next code:
public class CMainApp {
public static void main(String[] args) {
float f1, f2 ;
f1 = 1.2f ;
f2 = 3f ;
f1 = f1 * f2 ;
// Why returned value couldn't be
// 3.6 ???
System.out.println( f1 ); // PAY ATTENTION !!! : 3.6000001
}//main
}//CMainApp
For some reason I got strange answers 3.6000001. It should be 3.6.
Is there any way to deal with this problem ?
Thanks a lot, Mark. If you could, please mail me at
mailto:[email protected]

JohanUP, first thanks for respond.
But you solution dosn't serve my needs.
// This code line will print you 4
// but I wants my 3.6
System.out.println( Math.round( 1.2 * 3 ) );
Now I'm trying some tricks with NumberFormat, If I'll
success I'll let you guys to know.

Simple Math equation in Flash BUGGSSS

I'm doing a simple Minus equation
here it is:
Question : 100.24 - 100.23
My Answer : 0.01
Flash Answer : = 0.0.00999999999999091
Question : 10.24 - 10.23
My Answer : 0.01
Flash Answer : = 0.00999999999999979
Question : 0.24 - 0.23
My Answer : 0.01
Flash Answer : = 0.01
Why when i'm over 10.00, Flash gives me a wrong answer. Also,
there is somethings weird. If I put the number in textfields and I
display the result, it will be different of the same equation in a
trace.
I need to build a form that calculate money. It's a problem
for me if decimal are not valid!
Any idea?

That's a common problem when calculating with decimals, not
only in Flash. There were some good explanations in this forum, but
it seems I can't come up with the right search terms atm... In
short, there are always some rounding operations when calculating
with decimals, resulting in those strange results. You can try to
search the forum, or read
http://en.wikipedia.org/wiki/Floating_point,
if you want to know more about it.
A way to avoid this is to convert the decimals into full
numbers first, calculate, and then convert back to decimals. E.g.,
if you always have 2 decimal parts, multiply by 100 to get full
numbers, do the calculation, then divide the result by 100 to move
the decimal point back in place.
hth,
blemmo

Simple Math in SQL Query or cfset

Calculated fields in the DB vs <cfset>?
It would seem simple, but:
ACCESS DB ;>(
CF9
IIS
<cfquery name="get_total" datasource="#Request.BaseDSN#">
SELECT SUM((current_charge+penalty)-credit) AS total
FROM moorings
WHERE mooring_ID = #URL.mooring_ID#
</cfquery>
<cfdump var="#total#">
Variable TOTAL is undefined?
or
<cfset subtotal = current_charge+penalty>
<cfset total = subtotal-credit>
Variable CURRENT_CHARGE is undefined?
Missing ',", (, #'s?
Thanks

Run the query without using SUM to see what values are stored in the database:
<cfquery name="get_total" datasource="#Request.BaseDSN#">
SELECT current_charge, penalty, credit
FROM moorings
WHERE mooring_ID = #URL.mooring_ID#
</cfquery>
<cfoutput>
charge: #get_total.current_charge#<br />
penalty: #get_total.penalty#<br />
credit: #get_total.credit#<br />
</cfoutput>
or
<cfdump var="#get_total#">
Also, it's a good idea to get into the habit of using cfqueryparam in your SQL queries. It helps sanitize your inputs and prevents SQL injection attacks:
<cfquery name="get_total" datasource="#Request.BaseDSN#">
SELECT current_charge, penalty, credit
FROM moorings
WHERE mooring_ID = <cfqueryparam value="#URL.mooring_ID#" cfsqltype="cf_sql_integer">
</cfquery>

How can I specify simple math like in a Formula Node but on the front panel?

If the Formula node had a "text" property, that would work for me, because I could limit my inputs and outputs to N floating-point numbers.
LabVIEW once had such a thing but it was in an add-on math library, and I don't remember what it was called.
Solved!
Go to Solution.

Thanks; that led me directly to what I was looking for. A combination of "Parse Formula String.vi" and "Eval Parsed Formula String.vi" works perfectly for me!

Can someone help me with a simple duration calculation?

I created a simple workbook for calculating hours worked. I am entering the start time, end time, and using the DUR2HOURS formula to calculate the duration. For some reason the calculation is wrong. I am sure it is somethign simple, but I could not find an answer and it has been bothering me for a couple of days now. Here is an example of what is happening:
Start Time | End Time | Duration
7:15 AM 5:30 PM 10.25 (formula: =DUR2HOURS(ENDTIME - STARTTIME)
The duration in this example should be 10.15?
Thanks,
Nate

Hi NorthrailDrive,
DUR2HOURS gives the value in decimal hours, not hours:minutes.
Your answer (in decimal hours) is correct (10.25, or ten and a quarter hours).
Cell C2 contains the formula you need to calculate a duration:
=B2-A2
C2 is formatted as Duration h (hours) m (minutes). You can change the display to show 10:15
Regards,
Ian.

Simple math calculation in numbers

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