Search DaniWeb - precision

Re: Need a small footprint desktop with decent power 1 Month Ago by Dani Not too long ago, I ditched a suuuuuper expensive ~10 year old Dell Precision workstation with like 64 cores or something crazy, multiple video cards, dedicated RAID controller, etc. for a much less expensive M1 Max Macbook Pro. The macbook outperformed the Dell for everything I did by far. precision issues when printing to cout 15 Years Ago by r30028 … 2 as 2.0 (can do with a fixed precision of 1) Print 3.75 as 3.75 (can… change fixed precision to 2 for this but don't want a precision limit) Print 3.5 …as 3.5 (do not want a precision limit here) So my main problem is, I want… setprecision after I use it so that only the precision of the current call is affected. I have tried… Re: Precision in Code 14 Years Ago by Labdabeta … could be useful here: [CODE]cout.precision(2); cout<<2.234134<<endl; cout&….2 2.3 In other words, using cout.precision(X) sets the precision of cout to X and it stays that way… until cout.precision(Y) is called, then the precision is set to Y. Alse try to… Re: Precision in Code 14 Years Ago by determine … could be useful here: [CODE]cout.precision(2); cout<<2.234134<<endl; cout&….2 2.3 In other words, using cout.precision(X) sets the precision of cout to X and it stays that way… until cout.precision(Y) is called, then the precision is set to Y. Alse try to… Precision paramater 16 Years Ago by doha786 in C language i learned Precision paramater to show how many decimal point to print... in java how to do this precision for double, float etc.................... Re: Precision paramater 16 Years Ago by VernonDozier [QUOTE=doha786;839519]in C language i learned Precision paramater to show how many decimal point to print... in …java how to do this precision for double, float etc....................[/QUOTE] I imagine your best bet… precision problems and do while loop 15 Years Ago by timbomo …symb; cout.setf(ios::fixed); cout.setf(ios::showpoint); cout.precision(2);[/CODE] [CODE]do { cout << endl;[/…} [CODE] cout.setf(ios::fixed); cout.setf(ios::showpoint); cout.precision(4); { if (( sqft >= 150)) cout << … Re: precision problems and do while loop 15 Years Ago by Narue The only things [icode]int[/icode] can hold are whole numbers. Any precision you assign to an integer will be truncated. Precision problem, how to? 15 Years Ago by denizen08 … instead I want it to stop calculation at a certain precision. Can anyone help me to find a way to do… Precision in Code 14 Years Ago by determine I want to set precision to 2 with the results. Does that mean that I … precision error 10 Years Ago by raghulmsc in vb6, round off value with 0 precision for the numbers 325756.50, 327336.50 & 318646.50 shows as 325756,327336 & 318646. Other languages shows as 325757, 327337 & 318647. any one can explain? why? Re: Precision in unit tests? 15 Years Ago by StuXYZ …(const T& A, const T& B,const double precision = 1e-4); template<typename T> bool notEqual(const… T& A,const T& B,const double precision = 1e-4); // less / greater etc. } [/code] Then specialize each type… Re: precision for large floating value 13 Years Ago by rubberman … are only 32 bits and hence are quite limited in precision as well as exponent size. Doubles are 64-bits, and…-bit internal floating point operations. Also, remember that [B][I]precision[/I][/B] (the number of decimal places after the integer… Re: Precision in unit tests? 15 Years Ago by siddhant3s … concerned, ask the same old question to yourself, how much precision do you need? I suggest you to code the epsilon… Re: precision for large floating value 13 Years Ago by adityatandon Use signed long double.. This increases the values that can be held by long double by two times (As it doesnt take values less than 0, and in this case, i dont think u require it) Also, if u want to define the number of decimal places in your output... U can use setw() and set precision(forgot the function for it) Re: force single precision? 20 Years Ago by murschech …. I can't figure out how else to force single precision? [code] void main(void) { float eps = 1.0f; while( eps… any computed floating point expression, is evaluated as a double precision number. It's only when you store it in a… single precision variable that it becomes float. What you have to do… force single precision? 20 Years Ago by akila … simple program to figure out the single machine precision (epsilon). According to C, float precision is 1.2e-8, but I'm… getting the double precision, 2.2e-16. I can't figure out how else …to force single precision? [code] void main(void) { float eps = 1.0f; while( eps… Time Difference with precision 17 Years Ago by shuaibe … & in HH: MM: SS format with nanosecond precision. The timestamps I read from the file are char array…which can be used to compute time difference with high precision ? The difftime() function computes time difference in epoch units… but with only seconds precision. 2. How can I computer time difference with high… Don't display end/trailing zero's in decimals/precision 14 Years Ago by caltech …(3) << plan << "\t"; cout.precision(0); cout << setw(10) << principal <…;< "\t"; cout.precision(1); cout << setw(7) << rate <…(8) << years << "\t"; cout.precision(2); cout << setw(11) << Annually <… Re: Type Double (Output Precision)? 14 Years Ago by StuXYZ …;std::endl;[/icode]. The problem with that is the default precision, [B]for output[/B], is 6. The number itself is…<<std::endl; // Not all numbers are now in precision 20. [/code] The following code give you something like : 1… [for my 64 bit machine -- sizeof(double) == 8 bytes] the precision of double is about 14/15 decimal places. [and I… Re: Type Double (Output Precision)? 14 Years Ago by FutureWebDev …[/B], is 6. The number itself is of a higher precision. If you write this [code=c++] #include <iostream&…<<std::endl; // Not all numbers are now in precision 20. [/code] The following code give you something like : …[for my 64 bit machine -- sizeof(double) == 8 bytes] the precision of double is about 14/15 decimal places. [and I… Re: force single precision? 20 Years Ago by Dave Sinkula … of the results of expressions may be represented in greater precision and range than that required by the type; the types… floating constants are evaluated to a format whose range and precision may be greater than required by the type.[/quote] Re: Don't display end/trailing zero's in decimals/precision 14 Years Ago by L3gacy You could just cast the numbers you want no precision on with [CODE]static_cast<int>double x;[/CODE] Random Double Generation With Precision? 18 Years Ago by shmay … 0.) The second parameter is how many places of random precision the number must have. I have this: [code] double function… decimal, and have no idea how to give it immediate precision. Help! Re: Random Double Generation With Precision? 18 Years Ago by Lerner Look up C output format specifiers. The number will be stored to whatever degree of precision that is allotted to type double, but the degree of precision can be dictated on displaying the value. Re: Random Double Generation With Precision? 18 Years Ago by Lerner … a double, not prints it, why would it need the precision value?[/QUOTE] The program doesn't need it. In fact… whatever of memory to store the double with as much precision as it can. Your teacher wants to see if you… hign precision floating point operator - 17 Years Ago by Mylena … please advise me where I can find examples of high precision floating operators, where I can clearly see the binary schifts…, but I have no idea how to write this High Precision Floating operators. (+,-,*,/,etc). I downloaded GMP library, but it didn… How to set precision to the left of decimal? 17 Years Ago by elanch hi all! I need to set precision to the left of decimal. For the number field i have to set the field precision such that the nos should be in a format as 0001,0002,0003------------------.9999. Thanks Multiple Precision Arithmetic 17 Years Ago by matt999tye … right! Write an assembly language program that will use multiple precision arithmetic to add the following defined word (dw) numbers in… 6789h CABBh 7777h [ICODE]// // Matthew Tye 101 36 654 // Multiple Precision Arithmetic with DW's // 252A9 #include "stdafx.h"… rounding function with precision 16 Years Ago by gregorynoob every time i make my own rounding routine with precision, i see my compiler suggesting a function long double round(long double x, int precision); so i was wondering if someone knows what library it comes from, i surely wasn't able to find it... thanks