How to do integer division in javascript (Getting division answer in int not float)? [duplicate]
var answer = Math.floor(x) I sincerely hope this will help future searchers when googling for this common question.
division
How can I do division with variables in a Linux shell?
Those variables are shell variables. To expand them as parameters to another program (ie expr), you need to use the $ prefix: expr $x / $y The reason it complained is because it thought you were trying to operate on alphabetic characters (ie non-integer) If you are using the Bash shell, you can achieve the … Read more
How to get a float result by dividing two integer values using T-SQL?
The suggestions from stb and xiowl are fine if you’re looking for a constant. If you need to use existing fields or parameters which are integers, you can cast them to be floats first: SELECT CAST(1 AS float) / CAST(3 AS float) or SELECT CAST(MyIntField1 AS float) / CAST(MyIntField2 AS float)
Why does integer division yield a float instead of another integer?
Take a look at PEP-238: Changing the Division Operator The // operator will be available to request floor division unambiguously.
Why is division in Ruby returning an integer instead of decimal value?
It’s doing integer division. You can use to_f to force things into floating-point mode: 9.to_f / 5 #=> 1.8 9 / 5.to_f #=> 1.8 This also works if your values are variables instead of literals. Converting one value to a float is sufficient to coerce the whole expression to floating point arithmetic.
How can I remove the decimal part from JavaScript number?
You could use… Math.trunc() (truncate fractional part, also see below) Math.floor() (round down) Math.ceil() (round up) Math.round() (round to nearest integer) …dependent on how you wanted to remove the decimal. Math.trunc() isn’t supported on all platforms yet (namely IE), but you could easily use a polyfill in the meantime. Another method of truncating the fractional … Read more
Is multiplication and division using shift operators in C actually faster?
Short answer: Not likely. Long answer: Your compiler has an optimizer in it that knows how to multiply as quickly as your target processor architecture is capable. Your best bet is to tell the compiler your intent clearly (i.e. i*2 rather than i << 1) and let it decide what the fastest assembly/machine code sequence … Read more
Which is better option to use for dividing an integer number by 2?
Use the operation that best describes what you are trying to do. If you are treating the number as a sequence of bits, use bitshift. If you are treating it as a numerical value, use division. Note that they are not exactly equivalent. They can give different results for negative integers. For example: -5 / … Read more
What is the reason for having ‘//’ in Python? [duplicate]
In Python 3, they made the / operator do a floating-point division, and added the // operator to do integer division (i.e., quotient without remainder); whereas in Python 2, the / operator was simply integer division, unless one of the operands was already a floating point number. In Python 2.X: >>> 10/3 3 >>> # … Read more
Divide a number by 3 without using *, /, +, -, % operators
This is a simple function which performs the desired operation. But it requires the + operator, so all you have left to do is to add the values with bit-operators: // replaces the + operator int add(int x, int y) { while (x) { int t = (x & y) << 1; y ^= x; … Read more