First of all Built-in functions are those functions that are available to us all the time without importing any python modules. Today we'll see how to use abs(x) function.

Let, say if x is less than zero, i.e, x < 0, than -x is returned. Otherwise, if x is greater than or equal to zero, i.e, x >= 0, than x is returned.

Let, say if x is complex, than in that case abs returns a square root of x.imag**2 + x.real**2 (a.k.a magnitude) of a number.

We'll be discussing complex numbers in another post. But in any case the formula to compute them remains same.

So, Let's get Started:

abs(x) function takes an argument that can be a integer or a floating point number. It returns you the absolute value of a given number. A argument can be complex number, in that case the magnitude is returned.

**Simple Case:**Let, say if x is less than zero, i.e, x < 0, than -x is returned. Otherwise, if x is greater than or equal to zero, i.e, x >= 0, than x is returned.

**Complex Case:**Let, say if x is complex, than in that case abs returns a square root of x.imag**2 + x.real**2 (a.k.a magnitude) of a number.

We'll be discussing complex numbers in another post. But in any case the formula to compute them remains same.

**Hope this Helps! Please write your comments it will help me improve.**
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