The remainder of the quotient of two numbers (usually integers).
Questions tagged [modulus]
847 questions
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votes
3 answers
How to individually select < li > and then use modulus to select the odd ones
ALright so I got a homework from my teacher to first select every individual < li > and then use modulus to select only the odd ones and change their color.
And I have to say that I am completely stumped.
I have tried selecting using child…
Theterri41
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votes
2 answers
How to use modulus with a global variable and namespace std?
Yes I know using namespace std is bad practice, but I have already written a majority of the code with this declaration in place, and I don't think I have the time to go back and modify it.
The reason for the global variable is that I'm using…
JustWorkAlready
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votes
3 answers
Using modulus operator in for Loop with if statements - Java beginner
I hope someone can help. My problem is with using the modulus operator in a for loop. My code is as follows:
for (int i = 0; i < 10; i++)
if (i % 2 == 0) {
method1();
}
else {
method2();
}
I understand how this loop works in that it iterates…
Mark Fenwick
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votes
1 answer
Check if incremented by 10 c++
I need to check of a number is incremented by 10 (70, 20, 110)
example:
input: (74, 21, 105)
output: false
input: (70, 20, 110)
output: true
I have tried if(num % 10 == 1)
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votes
1 answer
Number 2 recognized as prime - explaining 2 modulus
Can someone please explain why number 2 is also added to the list of prime numbers in the code below?
As the function below should only recognize a number as prime when there is at least 1 number with modulus not equal to 0.
As
2 % 0 = 0
2 % 1 =…
s3icc0
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votes
2 answers
Can someone explain how reversing an integer using % 10 works?
To reverse an integer and put it into a list, one would do the following (where x is some integer):
int lastDigit = x;
while(lastDigit != 0)
{
list.add(lastDigit % 10);
lastDigit /= 10;
}
So if x was 502, 2 0 and 5…
Ryan Williams
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votes
2 answers
Go over all multiples of 3 between 0 and 100 (inclusive), and print the ones that are divisible by 2
What I have so far:
num = range(0, 101, 3)
list = []
if num % 3 == 0:
list.append
print(list)
pythonnewbie
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votes
1 answer
Weird behavior when dividing hex numbers
I'm struggling with a really weird situation that I can't explain.
Basically I don't understand why results of modulus or division between two hex numbers are wrong (I'm using C).
I have a variable time which is a 32bit unsigned int and it's…
matteodv
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votes
5 answers
How to echo every after 9th iteration of a loop? First echo only counted 8 items
My code is below:
function portfolio_gallery() {
global $conn;
$query = $conn->query("SELECT codename, namegroup, features, title, showimage FROM portfolio ORDER BY id DESC");
if ($query->num_rows > 0) {
// output data of…
hello
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votes
2 answers
In javascript, can I use the modulus operator (%) on variables instead of integers?
I'm working on a Euler problem and am trying to build a function that checks a number to see if its a prime. I get error messages about the line:
if (a)%(b)==0{
Is my syntax wrong or is it impossible to use % on a variable rather on an…
jasonp49
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- 1
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votes
2 answers
b%a where b is very large
We are given two integers a and b, a <= 100000, b < 10^250. I want to calculate b%a. I found this algorithm but can't figure out how it works.
int mod(int a, char b[])
{
int r = 0;
int i;
for(i=0;b[i];++i)
{
r=10*r +(b[i] -…
daft300punk
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votes
2 answers
Java Not greater than certain value
I just have a simple question. In Java, we know that the remainder of (y%x) can't be greater than x itself. Thus, we could hypothetically set all numbers less than a certain value of x, say 100. Yet what would be the opposite of this? What if we…
kris
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votes
6 answers
JavaScript for-loop: Skip 2 Numbers Followed by a set of 3
I made a JavaScript loop that skips every set of two numbers that are followed by a set of three.
Consider the following set of integers:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
This is what the array returns:
1, 2, 3, 6, 7, 8
See how it skipped 4-5 and 9-10?…
Matthew
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votes
2 answers
Java modulus operator
Use a modulus operator is something which all programmers must to know. I know it =).
In java we have :
int a = 100 , b = 50, c;
If we do :
c = a % b; // c = 0 because : 100 = 50*2 + 0 | D = d*q + r using simple maths
However I felt a little…
afym
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votes
1 answer
How to calculate modulus?
I have a task to create a mathematical formula in c++, input some variables and get a result.
The problem is that I don't know how to represent and calculate the following:
sin(3 mod 180)
I`m aware that mod operator finds the remainder of a…
Vallerious
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