Differences Between float And double?

Question

What are differences between float and double?

Answer 1

if you wants to declare a small decimal value than use float data type and Double for bigger decimal value.

Answer 2

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Answer 3

Precision is the main difference where float is a single precision (32 bit) floating point data type, double is a double precision (64 bit) floating point data type and decimal is a 128-bit floating point data type.

float is represented in 32 bits, with 1 sign bit, 8 bits of exponent, and 23 bits of the significand (or what follows from a scientific-notation number: 2.33728*1012; 33728 is the significand).

double is represented in 64 bits, with 1 sign bit, 11 bits of exponent, and 52 bits of significand.

Answer 4

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Answer 5

The precision of the floating point representation increases as the magnitude decreases, hence floating point numbers between -1 and 1 are those with the most precision. ... A double is 64 and single precision (float) is 32 bits. The double has a bigger mantissa (the integer bits of the real number).

Answer 6

My friend your question is good and based on general concepts

Differences between float and double is that
Double gives us more range of input numbers than float

Answer 7

so double wont work on 32 bit computers? :P

Answer 8

It's not like that's, when you declared a variable as a Double it's take 64 bit space and 32 bit for float variable

Answer 9

oh i see, thanks