## C++ float array initialization

You only initialize the first N positions to the values in braces and all others are initialized to 0. In this case, N is the number of arguments you passed to the initialization list, i.e.,

You only initialize the first N positions to the values in braces and all others are initialized to 0. In this case, N is the number of arguments you passed to the initialization list, i.e.,

A floating point number is normalized when we force the integer part of its mantissa to be exactly 1 and allow its fraction part to be whatever we like. For example, if we were to take the number 13.25, which is 1101.01 in binary, 1101 would be the integer part and 01 would be the fraction part. I could represent 13.25 as 1101.01*(2^0), but this isn’t normalized because the …

There is a function assert_approx_equal in numpy.testing (source here) which may be a good starting point.

It’s not that you’re actually getting extra precision – it’s that the float didn’t accurately represent the number you were aiming for originally. The double is representing the original float accurately; toString is showing the “extra” data which was already present. For example (and these numbers aren’t right, I’m just making things up) suppose you …

The information is available in sys.float_info, which corresponds to float.h in C99.

The number type has a step value controlling which numbers are valid (along with max and min), which defaults to 1. This value is also used by implementations for the stepper buttons (i.e. pressing up increases by step). Simply change this value to whatever is appropriate. For money, two decimal places are probably expected: (I’d also set min=0 if it can only be positive) If you’d …

What you are looking for is ‘type casting’. typecasting (putting the type you know you want in brackets) tells the compiler you know what you are doing and are cool with it. The old way that is inherited from C is as follows. If you had only tried to write You would have got a warning that …

When you type OCaml interprets it as i.e. as a subtraction. Instead, do

I expect the output should be 4.08000000 whereas I got only 4.00000000. Is there any way to get the numbers after the dot?

To modify the float output do this: