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c++ - Double precision - decimal places - Stack Overflow From what I have read, a value of data type double has an approximate precision of 15 decimal places However, when I use a number whose decimal representation repeats, such as 1 0 7 0, I find tha
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
decimal vs double! - Which one should I use and when? When should I use double instead of decimal? has some similar and more in depth answers Using double instead of decimal for monetary applications is a micro-optimization - that's the simplest way I look at it
What are the actual min max values for float and double (C++) For double, this is 2 1024 −2 971, approximately 1 79769•10 308 std::numeric_limits<T>::min() is the smallest positive normal value Floating-point formats often have an interval where the exponent cannot get any smaller, but the significand (fraction portion of the number) is allowed to get smaller until it reaches zero