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Search found 6604 results on 265 pages for 'double precision'.

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  • How to correctly and standardly compare floats?

    - by DIMEDROLL
    Every time I start a new project and when I need to compare some float or double variables I write the code like this one: if (fabs(prev.min[i] - cur->min[i]) < 0.000001 && fabs(prev.max[i] - cur->max[i]) < 0.000001) { continue; } Then I want to get rid of these magic variables 0.000001(and 0.00000000001 for double) and fabs, so I write an inline function and some defines: #define FLOAT_TOL 0.000001 So I wonder if there is any standard way of doing this? May be some standard header file? It would be also nice to have float and double limits(min and max values)

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  • Why Is ToString() Rounding My Double Value?

    - by user163757
    How do I prevent my double value from being rounded when converting to a string? I have tried both Convert.ToString and ToString() with the same result. For example my double may look something like 77.987654321, and the two strings conversions convert to to 77.98765. I need to keep the precision of the value as is.

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  • Double Timezone offset

    - by gAMBOOKa
    I have a timezone name and I want the name of the timezone double its offset. For instance, Asia/Dubai is +4, I want to double that to +8... and have it resolved to Asia/HonkKong Language: PHP Here's a sample of what it would look like: $timezone = "Asia/Dubai" $offset = $timezone->getOffset(); $offset *= 2; $timezone = $offset->getTimeZone(); Output: Asia/HonkKong

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  • need a regex to parse a csv file with double quotes in php

    - by Brandon G
    Trying to parse a csv file that has all the data wrapped in double quotes, because there may be commas in the double quotes. Looks like this: $songs = '"1, 2, 3, 4 (I Love You)","Plain White T's","CBE10-22",15,"CBE10-22","","","CB",984,"","10/05/10"'; $regResult = preg_match( "", $songs, $matches ); I can't figure out a regex that will return the data between the quotes as the matches. I'm sure there is some regex master that can help me with this.

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  • cocoa - converting a double to string

    - by Mike
    I have a double number and I would like to convert it to string. The number is, for example, something like 24.043333332154465777... but if I convert it to string using something like NSString *myString = [NSString stringWithFormat:@"%f", myDouble]; The string is just 24.043333 how do I get a full string the corresponds to the whole double number? What other methods do I have to convert this?

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  • Equality with Double.NaN

    - by chris
    I have the following code... if (Price_Foreign != Double.NaN) { output.Append(spacer); output.Append(String.Format("{0,-10:C} USD",Price_Foreign)); } Which outputs: NaN USD What gives? I'm using Double.NaN to indicate that the value doesn't exist, and shouldn't be output.

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  • Azure storage - double decimal point ignored on save

    - by Fabio Milheiro
    I have a value that is correctly stored in a property of an object, but when I save the changes to the Azure storage database, the double value is stored to the database ignoring the point (7.1000000003 is saved as 711). Also, the property is changed to 711.0. How do I solve this problem? The field is already set to double in the class and the database table.

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  • WPF ListView GridViewColumn Double Click

    - by Kevin
    Hi, I have a WPF ListView that opens a certain window when double clicked on a certain item inside the list view, but I have a problem. When I double click the GridViewColumn, that also opens up a certain window. Is there a way to detect if the sender is a gridviewColumn or a listView item? Thanks

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  • Fast double -> short conversion with clamping using SSE?

    - by gct
    Is there a fast way to cast double values to shorts (16 bits signed), currently I'm doing something like this: double dval = <sum junk> int16_t sval; if (val > int16_max) { sval = int16_max; } else if (val < int16_min) { sval = int16_min; } else sval = (int16_t)val; I suspect there's a fast way to do this using SSE that will be significantly more efficient.

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  • Break the nested(double) loop in python

    - by prosseek
    I use the following method to break the double loop in Python. for word1 in buf1: find = False for word2 in buf2: ... if res == res1: print "BINGO " + word1 + ":" + word2 find = True if find: break Is there better way to break the double loop?

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  • javascript turn single line break to double line break

    - by Eric Sim
    Hm... I'm trying to convert single line break into double line break, as in This is a sentence. This is another sentence. into This is a sentence. This is another sentence. Apparently this doesn't work ThisContent = ThisContent.replace(/(\n)/gm, "\n\n"); since it replace everything, including double line breaks. What's the regex to do this?

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  • How to use double buffering inside a thread and applet

    - by russell
    I have a question about when paint and update method is called?? i have game applet where i want to use double buffering.But i cant use it.the problem is In my game there is a ball which is moving inside run() method.I want to know how to use double buffering to swap the offscreen image and current image.Someone plz help. And when there is both update() and paint() method.which are called first,when and why ???

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  • Problem in converting ToDictionary<Datetime,double>() using LINQ(C#3.0)

    - by Newbie
    I have written the below return (from p in returnObject.Portfolios.ToList() from childData in p.ChildData.ToList() from retuns in p.Returns.ToList() select new Dictionary<DateTime, double> () { p.EndDate, retuns.Value } ).ToDictionary<DateTime,double>(); Getting error No overload for method 'Add' takes '1' arguments Where I am making the mistake I am using C#3.0 Thanks

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  • roundoff double values in Java

    - by S.PRATHIBA
    Hi all, I have a matrix.I found the 10th power of matrix using Java.After finding the 10th power,I need to round off the double values to 3 decimal places.Please help me to round off the double values in the matrix to 3 decimal places.

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  • Python: inserting double or single quotes around a string

    - by Jessy
    Im using python to access a MySQL database and im getting a unknown column in field due to quotes not being around the variable. code below: cur = x.cnx.cursor() cur.execute('insert into tempPDBcode (PDBcode) values (%s);' % (s)) rows = cur.fetchall() How do i manually insert double or single quotes around the value of s? I've trying using str() and manually concatenating quotes around s but it still doesn't work. The sql statement works fine iv double and triple check my sql query.

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  • strange parsing Double behaviour...

    - by Cristian Boariu
    Hi, I have this line of code: return (this.pretWithoutDiscount / Double.Parse(UtilsStatic.getEuroValue())).ToString("N2") + "€"; In debug mode i've tested and the values are: UtilsStatic.getEuroValue() = "4.1878" this.pretWithoutDiscount = 111.0 Can anyone explaing WHY: Double.Parse(UtilsStatic.getEuroValue()) = 41878.0 when it should be 4.1878 ?? Thanks... PS: UtilsStatic.getEuroValue returns a string.

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  • client generated double submit cookie, cross site request forgery prevention

    - by james
    in a double-submitted cookie csrf prevention scheme, is it necessary for the server to provide the cookie? it seems i could have javascript on the clients page generate and set a cookie "anti_csrf", then double submit that (once as a cookie, done by the browser, and once in the body of the request). a foreign domain would not be able to read or write the "anti_csrf" cookie to include it in the body of a request. is this secure, or am i overlooking something?

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  • double border with no space in between

    - by user330239
    Hi guys, i wanted to make a double border but with no space in between and the double border should be of different color. I tried using image instead but i thought css could probably perform this job for me, i searched the net but hardly find anything close. What i wanted is total of 2px dotted border with top color of #a4a4a4 and bottom color of #474747. Any idea how i can do this instead of creating 2 divs?

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  • template; Point<2, double>; Point<3, double>

    - by Oops
    Hi, I want to create my own Point struct it is only for purposes of learning C++. I have the following code: template <int dims, typename T> struct Point { T X[dims]; Point(){} Point( T X0, T X1 ) { X[0] = X0; X[1] = X1; } Point( T X0, T X1, T X2 ) { X[0] = X0; X[1] = X1; X[2] = X2; } Point<dims, int> toint() { //how to distinguish between 2D and 3D ??? Point<dims, int> ret = Point<dims, int>( (int)X[0], (int)X[1]); return ret; } std::string str(){ //how to distinguish between 2D and 3D ??? std::stringstream s; s << "{ X0: " << X[0] << " | X1: " << X[1] << " }"; return s.str(); } }; int main(void) { Point<2, double> p2d = Point<2, double>( 12.3, 45.6 ); Point<3, double> p3d = Point<3, double>( 12.3, 45.6, 78.9 ); Point<2, int> p2i = p2d.toint(); //OK Point<3, int> p3i = p3d.toint(); //m??? std::cout << p2d.str() << std::endl; //OK std::cout << p3d.str() << std::endl; //m??? std::cout << p2i.str() << std::endl; //m??? std::cout << p3i.str() << std::endl; //m??? char c; std::cin >> c; return 0; } of couse until now the output is not what I want. my questions is: how to take care of the dimensions of the Point (2D or 3D) in member functions of the Point? many thanks in advance Oops

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  • Problem in converting ToDictionary<Datetime,double>() usinh LINQ(C#3.0)

    - by Newbie
    I have written the below return (from p in returnObject.Portfolios.ToList() from childData in p.ChildData.ToList() from retuns in p.Returns.ToList() select new Dictionary<DateTime, double> () {p.EndDate, retuns.Value }).ToDictionary<DateTime,double>(); Getting error No overload for method 'Add' takes '1' arguments Where I am making the mistake I am using C#3.0 Thanks

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