Conversion of IEEE 754 32-bit floating point values readable numbers.

Similar Questions

• How do you get the 32-bit floating-point effects of working with an alpha channel?

  I do a few bugs, and lower thirds, but I find it very difficult to obtain effects of 32-bit floating point for export with transparency properly.

  When I do translucent animations with brilliant light effects, they look great in AE but I can't seem to find a way to bring Final Cut and get them to look as they should.

  I have attached this example of a bug with a screenshot of EI on the left with the CPF on the right. The Sun of colors and gradients of vibrant blue get flattened in a dull greenish color.

  

  As far as I know, all my alpha and color management settings are correct. I tried the options endless and codec settings to try to solve this problem, nothing helps.

  You can create an extreme, as for example by creating a translucent shape, crank the path of color to a saturated color superwhite and moving it around with the motion blur. The rendering looks pretty good to make an 8/16-bit, and nothing like he did in your Web.

  I have the feeling that superwhite with alpha channel color values are multiplied by the way AE gets ' lost in translation ' when it is rendered 4-channel 8-bit. Is it possible to look the way it does in the Web?

  Thank you

  Clint

  There is nothing wrong with AE, you have just a poor understanding of the works of floating point processing. In short: you're confusing mix of transparency, and this is why everything falls apart when you export. The color is still there, there is simply no opaque pixels to process on and so she never shows upward, much less in an environment that only works in 8 and 16 bits as FCP, limited killing already loyalty by using an 8-bit format. That's all that happens, and unfortunately there really isn't much you can do. Unmultiplying the result based on luminance should give you a usable result, but it remains an approximation, and regardless of whether you use the same blend modes in FCP, it will never be the same work. So in conclusion, a better way to do this would be to work 8 or 16bpc and make it look as if she were 32bpc. That is, if you can't make the final stage in AE, where even once, you'd be able to get a good mix in the float.

  Mylenium

• Convert c# to Java code - Floating Point Arithmetic

  Convert c# to Java code - Floating Point Arithmetic
  
  Hello
  I need to write a c# equivalent in java code. The c# code includes functions perform mathematical calculations. The result of these functions must match exactly with the c# (especially precision) counterpart. Here's a function that requires an equivalent java
  
  Public Shared Function squareroot (string n1)
  {
  If ((n1 == null) |) (System.Convert.ToDouble (N1) < 0))
  {return null ;}
  else {}
  return (Math.Sqrt (System.Convert.ToDouble (n1))) System.Convert.ToDecimal. ToString();
  }
  }
  
  C# two data types - float (32-bit) and double (64-bit) floating-point. It also includes a more specific data type float called decimal (128-bit). The float and double are supposed to follow the standard IEEE 754 floating point standard, but precise figures are different. Double c# has 15-16 digits for precision while the equivalent of java has 53, right? (the IEEE standard reference).
  
  Does anyone have an idea on what java equivalent data types/libraries must be used such that the results correspond with double c# and decimal?
  
  Thank you & happy new year

  This has nothing to do with the IEEE 754 standard, because nothing in IEEE 754 specifies how many decimal places should be used when a value is converted to a string. Simply because the resolution is between 15 and 16 decimal places does not mean that there is always an exact representation of any number of IEEE 754 format to 16 decimal places. In your example, Java chooses to create two decimal places more than c# don't but I bet that this is not a general rule you can count!

  The whole concept of using strings to represent the number seems to be skewed. I don't really see the point. It is mind bogglingly slow and in my view it does nothing for you. You have not yet met the real problem yet! What happens when Java or c# decides to use scientific notation?

  In your situation I would like to change the program c# use 'double' rather than 'chain', then you would find that you get an almost perfect match to all time. I make this recommendation of much written spending year of algorithms in C, C++, c# and Java of signal processing.

• BUG: Large floating point numbers convert the wrong integer

  Hello

  When you use the 'balls' conversion to convert integers to SGL, DBL and EXT there are certain values that convert evil. An example is the 9223370937343148030 integer that can be represented exactly as a SGL (and therefore exactly as DBL and EXT as well). If you convert this I64 you get 9223370937343148032 instead, even if the correct integer is in the range of an I64. There are many cases similar, all (I noticed) at the wide end of the ranges.

  It has nothing to with the integers can be represented exactly as a floating point value or not. This is a bug of authentic conversion you mind.

  See you soon,.

  Steen

  Hi Steen,

  Thanks for this identification. I confirmed the EXT to U64 conversion problem in simply trying to make a round trip on a xFFFFFFFFFFFFF9B0 of value U64 EXT and back, is xFFFFFFFFFFFFFFFF as well (and the intermediate value in EXT is correct).

  The problem seems to be limited to integer values with the upper part of 53 bits set, as well as all of one or more of the 11 lowest.

  I have reported this (#396305), as well as the limited display accuracy questions (#396337).

  Jim

  

• How to read the registry stored in IEEE 754

  Hello!

  I need to build an application to read the registers in my gauge. Application is almost complete, but I get to keep a record of the values differ from the values on my gauge (e.g. I have voltage 230V on the gauge and values about 20 k in application). Stores meter values in the IEEE 754 32-bit format and I have no idea how to read to get the correct value. I have seen that it is possible with the help of "Transtypé", but I do not know how to configure, I am totally newbie in LabVIEW. I'll be very grateful if someone could show me a VI with playback of IEEE 754 option, or just tell me how to do it in detail (what to click, what to write, etc. )

  Sorry for my English, I hope I don't have a lot of mistakes

  Welcome them

  Note your red dots, they indicate a data type mismatch. Remove the array of bytes to a string, because it truncates your U16 to U8 array elements. Cast and unflatten directly accepts arrays of U16. (corrected, see answer below)

  Also change your 'record keeping' to a constant of diagram (Terminal right-click... change constant). Only the type of questions, data are irrelevant here. (Should not be a scalar SGL instead?)

  Sorry, I don't have the Toolbox so miss me your Subvi.

• Decimal in Floating point with cookers

  Hello

  I am wanting to convert a decimal value to be implemented at the scale of a floating point value.

  For example.

  a decimal value from 0 to 20000 where half is considered to be the zero point. Then share values and on the other of this average value are considered postivie or double negative (0-10000 considered negative, 10001 to 20000 considered as positive). Then, the resolution of each decimal value is compared to a predefined scale.

  Don't know how to do in this regard.

  Any help is much appreciated.

  Hello

  I hope I got everything you wanted.

  Please take a look at the attachment.

  Paulie

• 16-bit float conversion

  Hello, I have recive 16-bit data that represents 16-bit float (half precision) is all easy way how to get the value of data without writing my own conversion from labview supports only 32, 64, 128, float formats. Thank you

  Hello, there is no option to convert the number in easy (without writing any code conversion) mode.

  According to: document 'A very Simple compiler' (http://acm.pku.edu.cn/JudgeOnline/problem?id=3202), you can use the code that is found in an attachment.

  Best regards
  MK

• Error in the printer for 16-bit application that runs in Windows7 32 error "caused a floating point exception in hpcui121.dll to 0x5b39caea.

  Original title: Error in the printer for 16-bit application that is running in Windows7 32

  I have a 16-bit application. I'm running Windows 7 32. All of a sudden, I can't print my application. I have two messages: "caused a floating point exception in hpcui121.dll in 0x5b39caea" and "caused an access violation in WOW32. DLL to 0x6dc50421. Any help to solve the problem would be greatly appreciated.

  Hello

  Have you tried the methods suggested in my previous post dated August 29?

  Response to help you further.

• floating points

  float f1 = 1f;
  float f2 - 1.00001f;
  System.out.println (F1 + F2);
  
  
  Will be the answer for this always be 2.00001? Or on different O/S will be there some time floating point math errors?
  
  Thank you

  847102 wrote:
  Why is double used more frequently than the float for cacls. I thought that the two float and double are IEEE 754 float just has half the memory.

  Also probably errors in floating point mathematics are all the same if your use float or double?

  If I ask you to write a decimal number representing 1/3 through 8 digits, you would write
  0.33333333
  fix?

  And if I asked you to write using 16 digits, you would write
  0.3333333333333333
  fix?

  While it is closer to the real value of 1/3? And which one has the biggest mistake?

  So, now, if I ask you to represent 0.1 using a number in base 2 of 32 bits, and then to make using 64-bit, since we know there are infinitely many numbers to do, like 1/3 in base 10 which do you think will be closer to the real value and that there will be the biggest mistake?

• Convert double IEEE 754 (hex?) table

  Hello

  is there a built-in Labwindows to convert table of IEEE 754 double (or hexagonal?, I'm not sure)

  Like this:

  Double Hex table

  40 00 00 42 20

  40.5 00 00 42 22

  40.8. 33 33 42 23

  I thank you,

  (PS: the hexagonal arraies above are calc by Type-Casting in Labview)

  As far as I know, there is no built-in LabWindows function to do this, then you need to use what exists in C.  The two ways that I know is to use pointers to mount the pointer to the float value as a pointer to an unsigned int and then retrieve the value as such:

     float f = 40.0f;
      unsigned int u;
  
      u = *((unsigned int *)&f);
  

  The other way is to use trade unions, which could be more convienent if you do this a lot.

  union ex32
  {
      float fval;
      unsigned int uval;
  };
  
      float f = 40.0f;
      unsigned int u;
      union ex32 t;
  
      t.fval = f;
      u = t.uval;
  

• Will I lose data conversion to double precision single-precision float?

  Before you say Yes...

  I use a crio unit in scan mode interface. Which returns the mode of scanning values in floating point double precision. Apparently I'm supposed to be able to choose between double precision fixed-point ("not calibrated") and ("calibrated") floating point data, but this feature seems to be exclusive to the fpga interface and is not available with the scan engine. The two data types are 64 bits per value, when it comes to the size on disk, anyway is still basically the same.

  The system continuously records 13 channels of comma floating double-precision at 200 Hz. using the binary file write, I measured it is about 92 MB/hr on the disk. (more than 120 MB/hr with PDM and much more to write on the worksheet) In short, this 92 mb/hr rate is just too much data on the disk on this system.

  The modules that I record since, 9236 9237 and 9215 c-series modules, have 24-bit a/d converters or less. Does this mean that I have not need 64-bit to represent the number and accuracy even?

  Can I force/cast point values double-precision floating that I receive of the variables of e/s scan engine to the data type of a different, smaller, as a single-precision floating point and retain the same precision?

  Nickerbocker wrote:
  between noise and precision equipment, I doubt that it makes much difference.

  You can test it by looking at the difference between a DBL and converted to SGL DBL. But I support the Nickerbocker trick. I don't think it will make the difference

• Convert the hexadecimal string of Little Endian floating-point single precision

  I made a lot of tinkering and research, but despite all the very similar examples, I found, I think that I am limited by my lack of knowledge in programming. I gives me values such as 0000c 641 I need to convert to 41C60000 who must convert single precision IEEE754 to 24.75 as a standard 32-bit float. I saw very similar examples with boxing and unboxing conversions, but I simply can't understand it. Thank you.

  OK, so if you have actual letters coming, there are a few ways that you can do. You can basically change the string in order to get in order waiting for LabVIEW. Otherwise, you can do the same using data manipulation functions:

  

• floating point to hexadecimal string

  Hello

  Is attached a screenshot of what I'm trying to do.

  The equation that I in the formula box basically is supposed to enter a number between 30 and 100 (which represents the intensity percentage) and he will give a value in which when converted to the spell and fed in my instrument will give the corresponding intensity in floating-point (ie. 30% if I had entered 30 as my x in the formula) I need. Thus, for example my lowest intensity (30) would give me a decimal value of 239 of the formula which is "EF" in hexadecimal.

  This code does not work for some reason any. If I replace my conversion function of formula and hexadecimal, with only a simple chain control and display of spell and EF entry switch and feed it into the instrument intensity makes the adjustment to 30%! But I prefer to use the scale bar instead which does not... Can someone please tell me if my conversion function is messed up or something.

  Thank you!

  Try this.

  

• Qosmio F50 - Webcam Error - Invalid floating point operation

  Hello

  I have a Qosmio F50 (4 weeks) problem is after two weeks webcam stopped working * not valid floating point operation *.
  I have to close the program via the Task Manager, * software camera Wizard does not *.

  Have you tried next.
  Update all drivers, System Restore

  Toshiba help line after all the efforts suggest all reinstall them it is aggressive for me, because he would lose some software on the laptop that I had to transfer old PCs and had to plead with some software companies to transfer (as a single license etc.).

  If someone else has had this problem and is there a simple solution

  Will be

  Hmm, you could remove the software of the webcam of the system and could remove too the webcam from the Device Manager.
  Then you could clean the operating system using the CCLeaner

  This software is free and it can clean the registry and the system. I use it very often.
  Then restart the laptop and try to reinstall the software of webcam again.

  Good luck

• Determine if an integer is a floating-point number

  I want to create a program that when an integer is entered in the digital constant, a floating-point number with zeros to the right of the decimal point lights up the LED on the front panel. The LED remains off for any other floating-point number. I know I want to use a ride to the nearest function, but don't know where to go from there.

  rtufaro wrote:

  I want to create a program that, when an integer is entered in the digital constant,.

  You want to say CONTROL, right?

  You just need a type of rounding.  No matter if round you upwards or downwards.  If you just around and then compare the entry to the rounded value.  If they are equal, you turn on your LED.  So all you need is a digital control, 2 functions, and a boolean flag.