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El tamaño en memoria de cada uno de esos tipos es diferente. float ocupa 32 bits mientras que double ocupa 64 bits. Esto afecta a la cantidad de números diferentes que "caben" en cada uno de estos formatos. En double se pueden almacenar números más grandes y también más decimales. Con los números que has probado no se ve diferencia porque cout << redondea la representación interna para ...
I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affec...
Possible Duplicate: long double vs double I am unable to understand the difference between between long double and double in C and C++. Can anyone help?
16 Double is more precise but is coded on 8 bytes. float is only 4 bytes, so less room and less precision. You should be very careful if you have double and float in your application. I had a bug due to that in the past. One part of the code was using float while the rest of the code was using double.
Using long double I get 18/19 = 0.947368421052631578..., and 947368421052631578 is the repeating decimal. Using double I get 0.947368421052631526... However, the former is correct. Why such an inco...