Floating point

hello,
I have a little doubt, I don't understand very well the meaning of floating point...
hope that you can help me
thank you

simply put, floating point = real number

It6s a scientific notation representation of real numbers. It was developed primarily to speed up 3 d graphical calculations. For more information check the following link.http://stevehollasch.com/cgindex/coding/ieeefloat.html

Think of integers as a whole string of numbers but with no decimal point. Let's say, for argument, you can have 10 digits.

Now think of having only 9 digits but you can have a decimal point at any position (floating). The other digit says where the decimal point is placed. It's much like exponential notation but oriented to computer storage.

Note that this is just for visiualizing the concept. The actual method of storing floating point numbers is much more involved.

you can also check out meaning of fixed point:
As the name suggests, decimal point is in fixed position.
This has limitation that fixed number of bits is used
to present values before and after decimal point.
For example let's take a look at equivalent in decimal world
and try to present values using 4 digits before and three
after decimal point.

This means format like 1234.567 and resolution of 0.001
while biggest number would be 9999.999
With floating point placed between any two digits you could
present numbers in range 0.000001 to 999999.9 which makes
much wider range.

Fixed point numbers are often simpler to process as they
work like integers (you just imagine decimal point to be
somewhere in the middle of the bit group you have available)
while floating point can present wider range of numbers.

Until match coprocessor became pretty much standard in CPUs,
anything that required fast processing and precission was
done using fixed point (check out older games and assembly
demos for example).

Some systems still don't have FPU built in (this applies to CPUs and
MCUs) so fixed point is usually way to go if speed or
simplicity is important.