precision

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C# int stored in double "==" precision problem

Here is the simplified code: i开发者_Go百科nt i = 1; double a = i; double b = i; Is it guarantied that a == b is true?Yes. 32-bit integers can be represented exactly as 64-bit floating point number[详细]

2023-01-26 23:45 分类：问答
Working with numbers larger than max decimal value

I\'m working with the product of the first 26 prime numbers.This requires more than 52 bits of precision, which I believe is the max a double can handle, and more than the 28-29 significant digits a d[详细]

2023-01-26 09:44 分类：问答
What are the rules governing C++ single and double precision mixed calculations?

For example, these variables: result (double) a (double) b (float) c (float) d (double) A simple calculation:[详细]

2023-01-26 08:49 分类：问答
How to 'cout' the correct number of decimal places of a double value?

I 开发者_开发知识库need help on keeping the precision of a double. If I assign a literal to a double, the actual value was truncated.[详细]

2023-01-26 06:56 分类：问答
What is the maximum precision with Decimal in SQL server 2005

I need to retain upto 17 decimal places. What is the appropriate precision with Decimal in SQL server 2005开发者_运维知识库 ?Depends how many values you want left of the decimal point, probably 17. So[详细]

2023-01-26 04:30 分类：问答
Looking for good substitute for calculating percentage employing integer math

I am a hobbyist programming for an embedded application.The application requires speed.I would like to determine whether or not a certain variable (call it \"X\") has passed a certain percentage (call[详细]

2023-01-25 17:40 分类：问答
Matlab: Storing large numbers in Matlab

For storing large numbers I am refering to the next: 2.718281828459045534884808148490265011787414550开发者_C百科7812500[详细]

2023-01-25 17:25 分类：问答
Why do CLLocation coordinates lose precision when displayed?

I\'m working on some experiments to try and increase the GPS accuracy on an iPhone by performing weighted averages on data collected over time. I\'ve noticed a difference in the display of coordinates[详细]

2023-01-24 08:38 分类：问答
Is there any way to print at least 20 significant figures in Octave?

I need to print the result of a program with 20 significant figures, but I don\'t know how to print more than 15开发者_高级运维 figures (format long). Is there any way to achieve this?You can control[详细]

2023-01-23 21:14 分类：问答
AS3 x and y property precision

In ActionScript 3 (and IIRC 2), the x and y properties on a display object are always stored as multiples of 0.05.[详细]

2023-01-22 11:10 分类：问答