What is so ''unsafe'' about floating point?
Infrequently Asked Questions in comp.lang.cHave you tried EXAMINE STICK? The stick has a sharp point, which punctures the raft, which no longer floats. Don't bring the stick into the raft with you.
What constitutes a floating point operation (a FLOP)?
The Aggregate: Frequently Asked Questions about KASY0Obviously, any operation on a floating-point value, right? Well, yes and no.
Is floating point arithmetic supported?
SystemCrafter - FAQNo, floating point is not supported by SystemCrafter SC Version 2.0. Floating point hardware implementations are extremely resource intensive and floating point algorithms can normally be more efficiently realised using integer arithmetic.
What are floating-point numbers?
Frequently Asked Questions (FAQ)A floating-point number is a number that has a fractional part; it is written with a decimal point, e.g.: 2.5, 3.141, -5.99. Floating point numbers are distinguished from integers, which have no fractional part. In Java, there are two types of floating-point numbers, those of type float and those of type double. Numbers of type double have higher precision than those of type float. By default, we will use double for floating-point numbers in CS111.
How to convert floating point decimal to binary?
JavaChina: SCJP Questions & Answers by Roseanne Zhang (8...In the integer part, you devide by 2. In the decimal part, you multiply by 2 Decimal Binary 2 10 4 100 8 1000 16 10000 0.5 0.1 0.25 0.01 0.125 0.001 0.0625 0.0001 ... You should get my point now.
How can I handle floating-point exceptions gracefully?
System DependenciesOn many systems, you can define a function matherr which will be called when there are certain floating-point errors, such as errors in the math routines in <math.h>. You may also be able to use signal (see question 19.38) to catch SIGFPE. See also questions 14.9 and 20.6b.
How can I store a floating point number into an integer?
COSC 2410: Computer Organization and Programming Lab Web Pag...FIST stores the value in ST to the specified memory location or register. Temporary-real values in registers are converted to the appropriate integer, BCD, or floating-point format as they are stored. With FSTP, FISTP, and FBSTP, the ST register value is popped off the stack. Memory operands can be 32-, 64-, or 80-bit real numbers for FSTP, or 16-, 32-, or 64-bit integers for FISTP.
Can you change or enter floating point values?
Binary file editor for Windows, FAQYou can enter a new floating point value in the fields of the Properties dialog. Just type the new value into the "value" field and press Enter (or Esc to abort). You can enter IEEE floating point values using the "IEEE" page or IBM floating point values using the "IBM FP" page. You can also change the byte-order using the "Big-endian" check box and enter 32-bit or 64-bit values depending on the format selected.
Why doesn't my floating-point comparison work?
Newbie Questions / Answers Updated! , C++ FAQ LiteWhy is cos(x) != cos(y) even though x == y? (Or sine or tangent or log or just about any other floating point computation) New!
Why does a decimal point not indicate floating-point?
comp.lang.forth Frequently Asked Questions (1/6): General/Mi...In the old days Forth did not have floating-point numbers; instead, fixed-point arithmetic was used, usually on double-cell numbers. So, a decimal point indicated a double number (the position of the decimal point was stored in the variable DPL for potential use by fixed-boint software). In ANS Forth, a decimal point at the end indicates a double-cell number, and an E in the number indicates a floating-point number (when BASE is decimal). All other ways to write numbers are system-dependent.
How do I enable software assisted floating point numbers?
Gentoo Linux Documentation -- Gentoo Linux/Alpha Frequently ...You can enable software assisted floating point numbers with -mieee. This will enable software assistance to correctly support denormalized numbers and exceptional IEEE values such as not-a-number and plus/minus infinity.
How can I make a floating point comparison function for use with qsort?
Frequently Asked QuestionsHere is a simple example (called "Sort Floats"): // Sort a list of floating point values #define USE_TI89 // Compile for TI-89 #define USE_TI92PLUS // Compile for TI-92 Plus #define USE_V200 // Compile for V200 #define MIN_AMS 100 // Compile for AMS 1.00 or higher #define SAVE_SCREEN // Save/Restore LCD Contents #include <tigcclib.
How do I use variable precision fixed and floating point computation in Super-FinSim?
Frequently Asked Questions about FinSimi) Please read chapter 8 of Super FinSim 8.4 Users Guide, which is available in .htm as well as in .pdf format on this WEB site. ii) The commercially available FinSim has a limitation of 127 bits of precision for trigonometric, and hyperbolic functions and of 82 bits for exponential and logarithmic functions. Customized versions may support enhanced precision.
Why don't floating point numbers work with the printf and scanf functions?
Frequently Asked QuestionsIn order to minimize size, versions of the printf and scanf functions without floating point support are linked by default. To enable floating point printf and scanf support, set the Floating Point I/O Supported property of your project to Yes.
Why doesn't AutoOpts handle floating point option arguments?
AutoGen's Frequently Asked QuestionsBecause handling it yourself is trivial, handling it in a fully integrated fashion is hard and I don't use floating point myself. Write your own callback routine. flag = { name = something; value = s; arg-type = string; arg-name = float; descrip = "floating point argument"; doc = "Example of an option with a floating point arg.
Why is floating point so inaccurate? Why doesn't this print 0.43?
Newbie Questions / Answers Updated! , C++ FAQ LiteDisclaimer: Frustration with rounding/truncation/approximation isn't really a C++ issue; it's a computer science issue. However, people keep asking about it on comp.lang.c++, so what follows is a nominal answer. Answer: Floating point is an approximation. The IEEE standard for 32 bit float supports 1 bit of sign, 8 bits of exponent, and 23 bits of mantissa. Since a normalized binary-point mantissa always has the form 1.xxxxx..
edit] What does "floating point error" mean? How can I avoid it?
Fluent FAQ -- CFD-Wiki, the free CFD referenceThe floating point error has been reported many times and discussed a lot. Here are some of the answers found in the Fluent Forum: From numerical computation view point , the basic operations performed by computer are represented inside computer in what is called floating point numbers. The errors that are either because of invalid numeric computation initiated by user or limitation of machine that is used are floating point errors.
What is a point?
Handipoints - Help and Frequently Asked QuestionsYou and your children will add Tasks to their Task Charts. When your child completes a Task, they will earn Handipoints and Bonus Points. You can change the number of Handipoints they earn for each Task. When you grade their Task, they will receive a point value that matches their grade. [back to top]
I get a message that says Floating point exception has occurred. Is this a bug in InstantTrack?
InstantTrack FAQMaybe so, but more probably you have a hardware problem. This is commonly caused by using a slow math coprocessor in a fast motherboard. Try running ITNCP.EXE (which doesn't use the coprocessor at all) instead of IT.EXE and see if the problem goes away. If it does, the problem is probably your coprocessor. InstantTrack may be the only program you run that really exercises the coprocessor extensively.
