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c++ - double and accuracy - Stack Overflow A double typically provides 16 (±1) decimal digits Your example shows this: 4 8 12 16 v v v v 0 947368421052631578 long double 0 947368421052631526 double The answers agree to 16 digits This is what should be expected Also, note that there's no guarantee in the C Standard that a long double has more precision than a double The last decimal digit (16th or 17th) is not necessarily accurate
What is the difference between float and double? - Stack Overflow 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
Difference between long double and double in C and C++ Possible Duplicate: long double vs double I am new to programming and I am unable to understand the difference between between long double and double in C and C++ I tried to Google it but was unab
Qual a forma correta de usar os tipos float, double e decimal? float e double são mais rápidos, eficientes e econômicos do que os BigDecimal s do Java; não posso afirmar muito sobre o Decimal do C#, mas creio que para multiplicação seja muito mais leve Normalmente, nos processadores mais modernos, existe um núcleo de processamento de aritmética de ponto flutuante