An arithmetic expression is an expression that results in a numeric value. There are two kinds of numeric values, integers (whole numbers), and real or floating point numbers (numbers containing a decimal point).
Questions tagged [arithmetic-expressions]
677 questions
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votes
1 answer
Beginner Arithmetic Math Operations (Java)
The question says 5 / 3 * 2.0 / (4 % 3) + 5 = 7.0
For some reason I don't understand why this makes sense at all. I start with dividing 5/6.0 = .83, then divide it by (4%3 which is 1) and add 5 but I'm not getting that answer. Can you explain it in…
user3230008
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votes
3 answers
C unsigned char arithmetic operation does not works as expected
Here is the my snippet of code;
Npp8u * imageHost;
typedef unsigned char Npp8u;
...
for (int i=0;i
erogol
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1 answer
Variables as commands
I want to be able to use a set of variables that can stand in for mathematical operators. I am attempting to create a calculator as a learning exercise. I figure it would not be good to have the calculation occur every time a button is pressed, so…
Konner Rasmussen
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Why is the following C++ returning 1(true)?
#include
int main() {
std::cout << (2 == 2) && (10 < 5);
}
This code prints 1 (true), but I expect it to print 0 (false).
I have tried to run the same code in several compilers, and they all give the same surprising result.
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votes
1 answer
How to write a python computer program that will take any valid arithmetic expression as a string and will output a list(or array of string)?
How to write a python computer program that will take any valid arithmetic expression as a string and will output a list (or array of string) of individual objects of the expression such as numbers, operators, variables, and…
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votes
1 answer
Python floats giving strange responses
I am writing a program that deals with adding floats to each other and found something weird.
Examples
---INPUT---
print(1+0.1)
print(1-0.1)
---OUTPUT---
1.10000000000001
0.99999999999999
Why is this happening and how do I stop it?
Dan Howe
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votes
1 answer
How to find missing value from equation using java?
User made some calculations using program..and printed it on paper.. But mouse cut some part from the paper.
Now we have to create the program to find missing values.
Example:
54 + 27 = HOLE
3241 + 4HOLE45=7281
We have to find the missing value at…
Akash Khapale
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votes
1 answer
Integer Division in Negative Numbers in Python
I'm testing big integers in Python; they are implemented as an object with sign and an array of digits. It's, basically, to describe Karatsuba Multiplication, and, for those big integers, I need the same behaviour like oridinary numbers with integer…
Tom
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votes
7 answers
How to system know that one over of cricket has 6 balls (Calculation) in Android
I'm developing a cricket app and I'm getting problems when I'm working with overs. We all know that whatever calculation is done in calculator is done with 10.
For example :
If there are total overs : 20, and current over 2.1
And I want to…
Pranav Fulkari
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votes
1 answer
Why does std::chrono::time_point doesn't like arithmetics?
I was simply trying to measure the time passed between to time points:
#include
#include
int main(){
// std::chrono::time_point start1; // <-- doesn't work
// std::chrono::time_point end1; // <-- doesn't work
auto…
daniel451
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votes
1 answer
How Do I Translate This Algebraic Expression In C++?
I need to write and execute a program in C++ that computes the value of the expression:
5x^2 + 12y / 3x , Where x = 12, And y = 9.8
This is what I have:
int num1 = 12; float num2 = 9.8; float totalResult;
totalResult = 5 * num1 * num2 + 12 * num2…
GreyHatBlaze
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votes
3 answers
Is there a floating point error in this obfuscated code?
As a puzzle I was given the following snippet of code yesterday with the question
Why does this give 773.06..?
var _ = 10, __ = 21, ___ = 38;
var _______ = { _: { "yo":_/___*_+___ }};
var ___________ =…
Hugo Buff
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votes
1 answer
Python: Converting inches to feet
I thought if I made the numbers float that it would give me a number with a decimal.
height = 65.0 / 12.0
print height
What I get back is 5 without the remainder when I use it in a string. Like say:
print "He is %d tall." % height
pynoob00
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votes
1 answer
Assigning double values in C works unexpectedly
Ive tried reading a lot of problems on SO and yet I cant seem to understand why my program reacts so strange..
I have this simple code trying to Implement sqrt function:
double sqrt,high,low,currNum;
scanf("%lf",&sqrt);
high = sqrt;
low =…
Omri Shneor
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votes
1 answer
C/C++ Arithmetic expression with double numbers - strange results - translating in java
FIRST PROBLEM
In C code I have this expression:
double completeExpression = x1 - h*exp(-lambda*t);
I have split it in two operations:
double value = h*exp(-lambda*t);
double subtraction = x1 - value;
The problem is that subtraction is different…
michele
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