## Why does 0.-5 evaluate to -5?

Suppose I write 0.5 as 0.-5 in unexpected way, but it can still run. What does 0. in 0.-5 do so that it can still run and evaluates to -5?

## How can I arrange numbers in this side-to-side pattern?

I am trying to make this pattern in PHP:I tried this, but was unsuccessful:Can anyone help me please?

## Sort an array which contains number and strings

I am trying to sort an array which contains strings, numbers, and numbers as strings (ex. '1','2'). I want to sort this array so that the sorted array contains numbers first and then strings that contain a number and then finally strings.

## How to check if user input is a number?

I would like to check if user input is a number; the 'input' is from an html input tag. I have provided code below. I don't understand why my code is not working, any help would be greatly appreciated.

## Why does Array.filter(Number) filter zero out in JavaScript?

I'm trying to filter all non-numeric elements out from an array. We can see the desired output when using typeof. But with Number, it filters zero out.

## Why Array.filter(Number) filters zero out in javascript?

I'm trying to filter all non-numeric out from array. We can see desired output when using typeof. But with Number, it filters zero out.

## Finding three integers such that their sum of cosine values become max

There are three integers x, y and z (each of them >= 1) and a given upper bound integer n < 10^6. Also, n = x + y + z and output = cos(x) + cos(y) + cos(z).

## Why does double in C print fewer decimal digits than C++?

I have this code in C where I've declared 0.1 as double.This is what it prints, a is 0.10000000000000001000000000000000000000000000000000000000