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Search found 1806 results on 73 pages for 'numeric precision'.

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  • How to insert null value for numeric field of a datatable in c#?

    - by Pandiya Chendur
    Consider My dynamically generated datatable contains the following fileds Id,Name,Mob1,Mob2 If my datatable has this it get inserted successfully, Id Name Mob1 Mob2 1 acp 9994564564 9568848526 But when it is like this it gets failed saying, Id Name Mob1 Mob2 1 acp 9994564564 The given value of type String from the data source cannot be converted to type decimal of the specified target column. I generating my datatable by readingt a csv file, CSVReader reader = new CSVReader(CSVFile.PostedFile.InputStream); string[] headers = reader.GetCSVLine(); DataTable dt = new DataTable(); foreach (string strHeader in headers) { dt.Columns.Add(strHeader); } string[] data; while ((data = reader.GetCSVLine()) != null) { dt.Rows.Add(data); } Any suggestion how to insert null value for numeric field during BulkCopy in c#... EDIT: I tried this dt.Columns["Mob2"].AllowDBNull = true; but it doesn't seem to work...

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  • Navigation keys on numeric keypad randomly stop working

    - by Tom Hughes
    Shortly after a restart, the arrow and navigation (Home, End...) keys on my numeric keypad will randomly stop working, and -- regardless of the state of the NumLock -- return only numbers. I notice this the most in browser applications (like this edit box) but the same effect is true on the command line and in desktop applications like Word. I swapped keyboards and now use a Microsoft keyboard (both are USB keyboards) but the same behavior persists. I also tried a clean boot to clean out startup programs but this made no difference. The separate arrow keys and navigation keys between the QWERTY keys and the numeric keypad work fine, but my strong preference (dating back to DOS and MS Flight Simulator) is to use the navigation keys in the numeric keypad.

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  • Java - How to avoid loss of precision during divide and cast to int?

    - by David Buckley
    I have a situation where I need to find out how many times an int goes into a decimal, but in certain cases, I'm losing precision. Here is the method: public int test(double decimalAmount, int divisor) { return (int) (decimalAmount/ (1d / divisor)); } The problem with this is if I pass in 1.2 as the decimal amount and 5 as the divisor, I get 5 instead of 6. How can I restrusture this so I know how many times 5 goes into the decimal amount as an int?

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  • How precise is the internal clock of a modern PC?

    - by mafutrct
    I know that 10 years ago, typical clock precision equaled a system-tick, which was in the range of 10-30ms. Over the past years, precision was increased in multiple steps. Nowadays, there are ways to measure time intervals in actual nanoseconds. However, usual frameworks still return time with a precision of only around 15ms. My question is, which steps did increase the precision, how is it possible to measure in nanoseconds, and why are we still often getting less-than-microsecond precision (for instance in .NET). (Disclaimer: It strikes me as odd that this was not asked before, so I guess I missed this question when I searched. Please close and point me to the question in that case, thanks. I believe this belongs on SO and not on any other SOFU site. I understand the difference between precision and accuracy.)

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  • Using a Higher Precision (than 8-bit unsigned integer) Buffered Image for Heightmaps in Java

    - by pl12
    I am generating a heightmap for every quad in my quadtree in openCL. The way I was creating the image is as follows: DataBufferInt dataBuffer = (DataBufferInt)img.getRaster().getDataBuffer(); int data[] = dataBuffer.getData(); //img is a bufferedimage inputImageMem = CL.clCreateImage2D( context, CL_MEM_READ_WRITE | CL_MEM_USE_HOST_PTR, new cl_image_format[]{imageFormat}, size, size, size * Sizeof.cl_uint, Pointer.to(data), null); This works ok but the major issue is that as the quads get smaller and smaller the 8-bit format of the buffered image starts to cause intolerable "stepping" issues as seen below: I was wondering if there was an alternate way I could go about doing this? Thanks for the time.

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  • Precision of Interval for PL/SQL Function value

    - by Gary
    Generally, when you specify a function the scale/precision/size of the return datatype is undefined. For example, you say FUNCTION show_price RETURN NUMBER or FUNCTION show_name RETURN VARCHAR2. You are not allowed to have FUNCTION show_price RETURN NUMBER(10,2) or FUNCTION show_name RETURN VARCHAR2(20), and the function return value is unrestricted. This is documented functionality. Now, I get an precision error (ORA-01873) if I push 9999 hours (about 400 days) into the following. The limit is because the default days precision is 2 DECLARE v_int INTERVAL DAY (4) TO SECOND(0); FUNCTION hhmm_to_interval return INTERVAL DAY TO SECOND IS v_hhmm INTERVAL DAY (4) TO SECOND(0); BEGIN v_hhmm := to_dsinterval('PT9999H'); RETURN v_hhmm; -- END hhmm_to_interval; BEGIN v_int := hhmm_to_interval; end; / and it won't allow the precision to be specified directly as part of the datatype returned by the function. DECLARE v_int INTERVAL DAY (4) TO SECOND(0); FUNCTION hhmm_to_interval return INTERVAL DAY (4) TO SECOND IS v_hhmm INTERVAL DAY (4) TO SECOND(0); BEGIN v_hhmm := to_dsinterval('PT9999H'); RETURN v_hhmm; -- END hhmm_to_interval; BEGIN v_int := hhmm_to_interval; end; / I can use a SUBTYPE DECLARE subtype t_int is INTERVAL DAY (4) TO SECOND(0); v_int INTERVAL DAY (4) TO SECOND(0); FUNCTION hhmm_to_interval return t_int IS v_hhmm INTERVAL DAY (4) TO SECOND(0); BEGIN v_hhmm := to_dsinterval('PT9999H'); RETURN v_hhmm; -- END hhmm_to_interval; BEGIN v_int := hhmm_to_interval; end; / Any drawbacks to the subtype approach ? Any alternatives (eg some place to change a default precision) ? Working with 10gR2.

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  • Error is occured when I try to build and install Numeric-24.2, anybody, help please me

    - by vpras
    vprasopchai@vprasopchai-Aspire-4720Z:~/Downloads/Numeric-24.2$ python setup.py build WARNING: '' not a valid package name; please use only.-separated package names in setup.py WARNING: '' not a valid package name; please use only.-separated package names in setup.py running build running build_py running build_ext MA Version 12.2.0 Numeric Version 24.2 vprasopchai@vprasopchai-Aspire-4720Z:~/Downloads/Numeric-24.2$ python setup.py install WARNING: '' not a valid package name; please use only.-separated package names in setup.py WARNING: '' not a valid package name; please use only.-separated package names in setup.py running install running build running build_py running build_ext running install_lib creating /usr/local/lib/python2.7/dist-packages/Numeric error: could not create '/usr/local/lib/python2.7/dist-packages/Numeric': Permission denied

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  • 3rd monitor with Dell Precision 490

    - by Animesh Kumar
    I am trying to go for a 3 monitor setup on my workstation, but need some information before I can invest in a new graphics card and 2 monitors. Would be glad to get some help here: I have a Dell Precision 490 workstation with Nvidia Quadro FX 4500 graphics card (PCI-E 16) on it. It has 2 DVI-D ports that can support 2 monitors upto 2560x1600 resolution. For the third monitor, I was looking at Nvidia NVS 295 card, however I am not sure if it is physically possible to hook another card to the motherboard. Here is the spec of Precision 490: http://www.dell.com/downloads/global/products/precn/en/spec_precn_490_en.pdf Can I attach NVS 295 to it? If not, what options do I have?

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  • Regular expression to validate whether the data contains numeric ( or empty is also valid)

    - by VinnaKanna
    Hi all, i have to validate the data contains numeric or not and if it is not numeric return 0 and if it is numeric or empty return 1. Below is my query i tried in SQL SELECTdbo.Regex('^[0-9]','123') --- This is returning 1 SELECTdbo.Regex('^[0-9]','') -- this is not returning 1 but i want to return as 1 and i try to put space in "pattern" also it is not working... please can any one help.... Thanks in advance

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  • Regular - Take all numeric characters following a text character

    - by Simon
    Given a string in the format: XXX999999v99 (where X is any alpha character and v is any numeric character and v is a literal v character) how can I get a regex to match the numeric chatacters following the v? So far I've got 'v\d\d' which includes the v but ideally I'd like just the numeric part. As an aside does anyone know of a tool in which you can specify a string to match and have the regex generated? Modifying an existing regex is one thing but I find starting from scratch painful!

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  • Good window management grid keyboard shortcuts on keyboards without a numeric keypad

    - by Bryce Thomas
    I like to use Winsplit Revolution to position open windows in a specific place on my screen in a grid-like fashion. One of the things I like about Winsplit Revolution is that the default keyboard shortcuts use the physical layout of the numeric keypad as a mnemonic for where each key positions a window (e.g. Ctrl + Alt + 7 positions window in top left hand corner because 7 is in top left hand corner and Ctrl + Alt + 3 positions window in bottom right hand corner because 3 is in bottom right hand corner). I am looking to get a laptop (Macbook Pro) whose keyboard does not feature a numeric keypad. Can anyone suggest a set of keyboard shortcuts on such a machine that provides a similar mnemonic to aid in remembering what each shortcut does, rather than a simple arbitrary assignment of shortcuts? To be clear, I am not interested in specific window management software, just suggestions for keyboard shortcuts that are easy to remember.

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  • Notepad++ or other application to replace string with numeric function

    - by user38963
    Hello. I am using Notepad++ and attempting to replace all numeric strings within a specific tag (xxxxof my XML document with a new string which has been modified by a specific variable. Here's an example (please remove the space between < and start): < start501234< /start round(501234 * 0.9) = 451111 < start451111< /start Is there a way to automatically find all numeric values within the start tag and do replace it by that same value multiplied by 0.9? I don't have to use Notepad++ if there's another tool that can do this. Thanks!

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  • Floating point precision in Visual C++

    - by Luigi Giaccari
    HI, I am trying to use the robust predicates for computational geometry from Jonathan Richard Shewchuk. I am not a programmer, so I am not even sure of what I am saying, I may be doing some basic mistake. The point is the predicates should allow for precise aritmthetic with adaptive floating point precision. On my computer: Asus pro31/S (Core Due Centrino Processor) they do not work. The problem may stay in the fact the my computer may use some improvements in the floating point precision taht conflicts with the one used by Shewchuk. The author says: /* On some machines, the exact arithmetic routines might be defeated by the / / use of internal extended precision floating-point registers. Sometimes / / this problem can be fixed by defining certain values to be volatile, / / thus forcing them to be stored to memory and rounded off. This isn't / / a great solution, though, as it slows the arithmetic down. */ Now what I would like to know is that there is a way, maybe some compiler option, to turn off the internal extended precision floating-point registers. I really appriaciate your help

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  • Convert Double to String without precision loss in javascript

    - by holger
    I would like to convert a floating point variable to a string without losing any precision. I.e. I would like the string to have the same information as my floating point variable contains, since I use the output for further processing (even if it means that the string will be very long and readable). To put this more clearly, I would like to have functions for cyclic conversion var dA = 323423.23423423e4; var sA = toString(dA); var dnA = toDouble(sA); and I would like dnA and dA to be equal Thanks PS: Sources on the internet usually talk about how to round strings but I have not found information on exact representation. Also I am not interested in Arbitrary Precision calculations, I just need double precision floating point arithmetic.

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  • Is long long in C++ known to be very nasty in terms of precision?

    - by Kevin
    The Given Problem: Given a theater with n rows, m seats, and a list of seats that are reserved. Given these values, determine how many ways two friends can sit together in the same row. So, if the theater was a size of 2x3 and the very first seat in the first row was reserved, there would be 3 different seatings that these two guys can take. The Problem That I'm Dealing With The function itself is supposed to return the number of seatings that there are based on these constraints. The return value is a long long. I've gone through my code many many times...and I'm pretty sure that it's right. All I'm doing is incrementing this one value. However, ALL of the values that my function return differ from the actual solution by 1 or 2. Any ideas? And if you think that it's just something wrong with my code, please tell me. I don't mind being called an idiot just as long as I learn something.

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  • double returning only one precision in java

    - by srinath
    in my code i am performing division on numbers and storing it in a double variable. but the variable is returning with only one precision. i want to increase the precision how could i do that. double x; for ( int i =0 ; i<10000 ; i++) { x= w[i] / l[i]; System.out.println(x); } in the above code w and l are integer arrays; i am getting output like 3.0 0.0 1.0 0.0 i want to increase the precision upto 4 atleast.

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  • What is the registry key for 'Enhanced Pointer Precision' option in the Mouse Properties

    - by detj
    I use a Razer mouse at work, and though the mouse is supercool, it's driver always removes the 'Enhanced Pointer Precision' option from the Pointer Options tab found in the Mouse Properties of Control Panel on startup. If I could find the correct registry setting to set this option 'on' whenever Windows starts, it would solve my problem. I've tried finding the correct key using Process Monitor, I didn't get success. Anyone know the key??

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  • java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error: character string buffer too small

    - by jack
    Hi I got an email from a user when he sees the following error output when he's using our web site. java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06512: at "WEB_OWNER.SSFP_GET_WE_OBJ", line 300 ORA-06512: at line 1 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:137) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:315) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:281) This is error from oracle webconnect, Oracle Application Server Containers for J2EE 10g (10.1.2.3.0). Any idea?

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  • Add constant value to numeric XML attribute

    - by Dave Jarvis
    Background Add a constant value to numbers matched with a regular expression, using vim (gvim). Problem The following regular expression will match width="32": /width="\([0-9]\{2\}\)" Question How do you replace the numeric value of the width attribute with the results from a mathematical expression that uses the attribute's value? For example, I would like to perform the following global replacement: :%s/width="\([0-9]\{2\}\)"/width="\1+10"/g That would produce width="42" for width="32" and width="105" for width="95". Thank you!

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  • View numeric columns in hex - SQL Server Management Studio

    - by Jonathan
    In SQL Server Management Studio, when I run a query which outputs a numeric column (int or similar types), they are displayed in decimal (example: 193). I want them to display in hex (example: 0xC1). How do I do that? I found many answers on how to write converter functions, but I don't want that - only change the display in SSMS. I only found this unanswered question. I use SQL2010, though may move to SQL2012 soon.

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