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Search found 347 results on 14 pages for 'arithmetic'.

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Python: How to calculate the following Friday at 3am?

- by Mark

As in, if it's currently Thursday it should not find the one tomorrow morning, but the one immediately following that? As datetime object?

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Javascript auto calculating

- by Josh

I have page that automatically calculates a Total by entering digits into the fields or pressing the Plus or Minus buttons. I need to add a second input after the Total that automatically divides the total by 25. Here is the working code with no JavaScript value for the division part of the code: <html> <head> <script…

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Is it possible to implement bitwise operators using integer arithmetic?

- by Statement

Hello World! I am facing a rather peculiar problem. I am working on a compiler for an architecture that doesn't support bitwise operations. However, it handles signed 16 bit integer arithmetics and I was wondering if it would be possible to implement bitwise operations using only: Addition (c = a + b) Subtraction (c = a - b)…

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When must arbitrary precision arithmetic functions be used in PHP?

- by Tjorriemorrie

My colleague uses the Binary Calculator functions in bandwidth calculations; as much as terrabytes, and with percentage splitting on allocation. His usage of these functions appears correct in order not to lose a byte; although he seems to be using them now for everything. The manual only says: For arbitrary precision…

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Is there a fix to display 0 when arithmetic underflow occurs on the Windows 7 calculator?

- by Pascal Qyy

I have a problem that exasperates me: When I take the Windows 7 calculator in standard mode, if I do 4, then v (square root), the result is 2 Fine. But, at this point, if I do - (minus), then 2, the result is -1,068281969439142e-19 instead of 0! OK, I know about ? (machine epsilon), and yes, -1,068281969439142e-19 is…

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Can I get an arithmetic expression as a string computed with the Javascript Math object?

- by chimerical

If I have an arithmetic expression as a string ("2+3*4/5"), is there a way to get this computed with the Javascript Math object without parsing that entire string to separate everything out?

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Is arithmetic overflow/underflow generally checked in .Net framework methods?

- by YWE

For example, let's use the Add method of the ArrayList class. If I am using the default compiler settings in Visual Studio C# project in which arithmetic overflow is not checked, would ArrayList.Add() throw an OverflowException if I added too many items? Would surrounding the method call with checked or unchecked make…

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Arithmetic operation resulted in an overflow. DotNetNuke 4.5.1 Repository

- by dcowhite

I received this error "Arithmetic operation resulted in an overflow." when trying to upload any file in the Repository module of DotNetNuke. I'm using dotnetnuke version 4.5.1. Any input would be great. Thanks.

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Doing arithmetic with up to two decimal places in Python?

- by user248237

I have two floats in Python that I'd like to subtract, i.e. v1 = float(value1) v2 = float(value2) diff = v1 - v2 I want "diff" to be computed up to two decimal places, that is compute it using %.2f of v1 and %.2f of v2. How can I do this? I know how to print v1 and v2 up to two decimals, but not how to do…

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How to use void*

- by Rondogiannis Aristophanes

I am imlementing a simple merge function and I have got stuck, as the compiler gives me errors that I cannot explain. Here is my merge function: void merge(void *a, int beg, int middle, int end, int (*cmp)(const void*, const void* { std::stack<void*> first; std::stack<void*> second; for(int…

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C# Why can't I find Sum() of this HashSet. says "Arithmetic operation resulted in an overflow."

- by user2332665

I was trying to solve this problem projecteuler,problem125 this is my solution in python(just for understanding the logic) import math lim=10**8 found=set() for start in xrange(1,int(math.sqrt(lim))): sos = start*start for i in xrange(start+1,int(math.sqrt(lim))): sos += (i*i) if…

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How do I do arithmetic operations on HH:MM:SS format time strings in C#?

- by Jake

I have a series of times that are coming to me as strings from a web service. The times are formated as HH:MM:SS:000 (3 milisecond digits). I need to compare two times to determine if one is more than twice as long as the other: if ( timeA / timeB > 2 ) What's the simplest way to work with the time…

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How do you raise a Java BigInteger to the power of a BigInteger without doing modular arithmetic?

- by angstrom91

I'm doing some large integer computing, and I need to raise a BigInteger to the power of another BigInteger. The .pow() method does what I want, but takes an int value as an argument. The .modPow method takes a BigInteger as an argument, but I do not want an answer congruent to the value I'm trying to…

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Why does GLSL's arithmetic functions yield so different results on the iPad than on the simulator?

- by cheeesus

I'm currently chasing some bugs in my OpenGL ES 2.0 fragment shader code which is running on iOS devices. The code runs fine in the simulator, but on the iPad it has huge problems and some of the calculations yield vastly different results, I had for example 0.0 on the iPad and 4013.17 on the simulator,…

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How do you perform arithmetic calculations on symbols in Scheme/Lisp?

- by kunjaan

I need to perform calculations with a symbol. I need to convert the time which is of hh:mm form to the minutes passed. ;; (get-minutes symbol)->number ;; convert the time in hh:mm to minutes ;; (get-minutes 6:19)-> 6* 60 + 19 (define (get-minutes time) (let* ((a-time (string->list…

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Loop with pointer arithmetic refuse to stay within boundary in C. Gives me segfault.

- by Fred

Hi have made this function which is made to replicate an error that I can't get past. It looks like this: void enumerate(double *c, int size){ while(c < &c[size]){ printf("%lf\n", *c); c++; } } I have added some printf's in there and it gives me: …

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What is the best signature for overloaded arithmetic operators in C++?

- by JohnMcG

I had assumed that the canonical form for operator+, assuming the existence of an overloaded operator+= member function, was like this: const T operator+(const T& lhs, const T& rhs) { return T(lhs) +=rhs; } But it was pointed out to me that this would also work: const T…

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Is apparent NULL pointer dereference in C actually pointer arithmetic?

- by karthik A

hey ive got this piece of code. It dereferences a null pointer here. But then there is an and with unsigned int. I really dont understand the whole part. Can someone explain the output.?? struct hi { long a; int b; long c; }; int main() { struct hi…

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Simple Self Join Query Bad Performance

- by user1514042

Could anyone advice on how do I improve the performance of the following query. Note, the problem seems to be caused by where clause. Data (table contains a huge set of rows - 500K+, the set of parameters it's called with assums the return of 2-5K records per query, which…

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Python — Time complexity of built-in functions versus manually-built functions in finite fields

- by stackuser

Generally, I'm wondering about the advantages versus disadvantages of using the built-in arithmetic functions versus rolling your own in Python. Specifically, I'm taking in GF(2) finite field polynomials in string format, converting to base 2 values, performing…

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urgent..haskell mini interpreter

- by mohamed elshikh

i'm asked to implement this project and i have problems in part b which is the eval function this is the full describtion of the project You are required to implement an interpreter for mini-Haskell language. An interpreter is dened in Wikipedia as a computer…

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Dynamic Operator Overloading on dict classes in Python

- by Ishpeck

I have a class that dynamically overloads basic arithmetic operators like so... import operator class IshyNum: def __init__(self, n): self.num=n self.buildArith() def arithmetic(self, other, o): return o(self.num, other) …

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A Quantity class with units

- by Ryan Ohs

Goals Create a class that associates a numeric quantity with a unit of measurement. Provide support for simple arithmetic and comparison operations. Implementation An immutable class (Could have been struct but I may try inheritance later) …

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Comparing angles and working out the difference

- by Thomas O

I want to compare angles and get an idea of the distance between them. For this application, I'm working in degrees, but it would also work for radians and grads. The problem with angles is that they depend on modular arithmetic, i.e. 0-360 degrees. Say one…

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Lvalue required error [migrated]

- by ankur.trapasiya

While working with pointers i wrote the following code, int main() { int a[]={10,20,30,40,50}; int i; for(i=0;i<5;i++) { printf("\n%d",*a); a++; } return 0; } Now as per my understanding array name itself is an…

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