sqrt Questions
1
Solved
I'm working on an application for solving quadratic constraints in 2D Euclidean geometry involving circles and lines (Constructable Numbers) and representing the results graphically. I've found thi...
Oruro asked 7/1, 2013 at 3:47
4
Solved
Under visual 2012 how can I call the sqrtsd asm function in a c++ project
I can't find it via google
something like :
double mySqrt(double val)
{
__asm
{
...
sqrstd...
}
}
EDIT:
in 32bit mo...
Embry asked 28/12, 2012 at 9:20
3
Solved
I am looking for a fast square root implementation in Java for double values in the input range of [0, 2*10^12]. For any value in this range, the precision should be upto 5 decimal places. In other...
Yankeeism asked 7/11, 2012 at 5:57
4
Solved
I am programming in the c language on mac os x. I am using sqrt, from math.h, function like this:
int start = Data -> start_number;
double localSum;
for (start; start <= end; start++) {
lo...
3
Solved
I am just learning C++. Compiling with g++ version 3.2.3, "g++ hworld.cpp":
double sqrt(double);
int main(){
double x = sqrt(1515.15);
return 0;
}
That compiles fine, but if we were to replace...
2
Solved
I have the code
unsigned long long f(unsigned long long x, unsigned long long y){
return sqrt( ( (5*x*x + 1) * (5*y*y +1) - 1 ) / 4 );
}
but if x or y is too big, the thing overflows even thou...
4
Solved
I have a call to
long long a = sqrt(n/2);
Both a and n are long long's but it won't let me compile because it says my use of sqrt() is an ambiguous call. I don't see how it's possibly ambiguous ...
2
Solved
I'm just learning haskell (on my own, for fun) and I've come up against a wall.
My Question:
How can I define a function
flrt = (floor . sqrt)
When I try it in a file and compile, GCHi compla...
2
Solved
I'm using sqrt() function from math library, when I build for 64 bit using -m64 I'm getting correct result but when I build for 32 bit I have very inconsistent behaviour.
For example on 64bit
do...
Gotha asked 30/5, 2012 at 0:38
3
Solved
I am using Code Block with GNU GCC Compiler. And I am trying this code
int number,temp;
printf("Enter a number :");
scanf("%d",&number);
temp = sqrt(number);
printf("\n%d",sqrt(number)); //pr...
4
Solved
I have a control loop running at high frequency and need to compute a square root each cycle. Typical square root functions work fine but take excessive time. Since the value I'm taking the square ...
Desexualize asked 12/4, 2012 at 14:10
2
Solved
I'm trying to find a little bit more information for efficient square root algorithms which are most likely implemented on FPGA. A lot of algorithms are found already but which one are for example ...
4
Solved
I am using Anthony Williams' fixed point library described in the Dr Dobb's article "Optimizing Math-Intensive Applications with Fixed-Point Arithmetic" to calculate the distance between two geogra...
Conventionality asked 4/1, 2012 at 1:38
1
Solved
(EDIT: Let's title this, "Lessons in how measurements can go wrong." I still haven't figured out exactly what's causing the discrepancy though.)
I found a very fast integer square root function he...
Amperehour asked 22/11, 2011 at 2:34
4
Solved
Consider this code:
double result = Math.Sqrt(4746073226998689451);
For result I get 2178548422 instead of 2178548421.999999854etc... How can I get more precise result?
4
Solved
How do you take the square root of a negative number in C++?I know it should return a real and a complex part, I get a NaN?How do I take the real part?
9
Solved
I want to generate the digits of the square root of two to 3 million digits.
I am aware of Newton-Raphson but I don't have much clue how to implement it in C or C++ due to lack of biginteger suppo...
Slippy asked 3/3, 2011 at 22:56
2
Solved
Here is what I'm trying to do:
isPrime :: Int -> Bool
isPrime x = all (\y -> x `mod` y /= 0) [3, 5..floor(sqrt x)]
(I know I'm not checking for division by two--please ignore that.)
Here's...
3
Solved
What is the difference in CPU cycles (or, in essence, in 'speed') between
x /= y;
and
#include <cmath>
x = sqrt(y);
EDIT: I know the operations aren't equivalent, I'm just arbitrari...
Shaver asked 30/7, 2011 at 16:9
3
Solved
How can I get sqrt from Int.
I try so:
sqrt . fromInteger x
But get error with types compatibility.
2
Solved
My code is as follows:
#include <cmath>
#include <iostream>
float foo(float f) {
std::cout << "float\n";
return f;
}
double foo(double d) {
std::cout << "double\n";
re...
Wraith asked 19/5, 2011 at 9:12
6
Solved
In specific:
Im doing some math operations, and the application keeps crashing because a double that is widely used happens to get the value: -1.#IND000000000000 when "some" numbers are sqrt'ed......
12
Solved
Most programming languages give 2 as the answer to square root of 4. However, there are two answers: 2 and -2. Is there any particular reason, historical or otherwise, why only one answer is usuall...
Worthy asked 8/5, 2009 at 4:17
6
Solved
Why is the output of sqrt not an integer for "16" in PHP?
Example
php > $fig = 16;
php > $sq = sqrt($fig); //should be 4
php > echo $sq;
4
php > echo is_int($sq); // should give 1, bu...
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