precision

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Unprecise rendering of huge WPF visuals - any solutions?

When rendering huge visuals in WPF, the visual gets distorted and more distorted with increasing coordinates. I assume that it has something to do with the floating point data types used in the render[详细]

2023-01-21 00:01 分类：问答
How do I configure Rails to output decimals to the correct precision in form fields?

I want to store currencies in my (sqlite and mysql) databases. I\'m trying to use the decimal column type, with :scale => 2.[详细]

2023-01-20 13:37 分类：问答
Float and double precision in c#

Having a bit of a problem here on a matrix multiplication code. I seem to lose precision on large matrices multiplications (my code runs fine on small matrices).[详细]

2023-01-17 22:26 分类：问答
Issue with precision of Ruby math operations

Do you know how to fix the following issue with math precision? p RUB开发者_开发知识库Y_VERSION # => \"1.9.1\"[详细]

2023-01-17 19:12 分类：问答
How do printf and scanf handle floating point precision formats?

Consider the following snippet of code: float val1 = 214.20; double val2 = 214.20; printf(\"float : %f, %4.6f, %4.2f \\n\", val1, val1, val1);[详细]

2023-01-17 17:19 分类：问答
Addition vs Subtraction in loss of significance with floating-points

While learning about precision in floating point arithmetic and different methods to avoid it (using a conjugate, taylor series,...) books frequently mention the subtraction of two very similar number[详细]

2023-01-16 22:17 分类：问答
Auto-Interval precision in MS Chart

I\'m currently using the charting within .NET using System.Windows.Forms.DataVisualization.Charting.Chart. Thus far it seems very powerful, and works great. However, there is a huge problem in terms o[详细]

2023-01-16 11:11 分类：问答
Arithmetic precision with doubles in Matlab

I am having a bit of trouble understanding how the precision of these doubles affects the outcome of arithmetic operations in Matlab. I thought that since both a & b are doubles they would be able[详细]

2023-01-16 01:59 分类：问答
Is there a way to get the "significant figures" of a decimal?

Update OK, after some investigation, and thanks in big part to the helpful answers provided by Jon and Hans, this is what I was able to put together. So far I think it seems to work well. I wouldn\'t[详细]

2023-01-15 08:35 分类：问答
For any finite floating point value, is it guaranteed that x - x == 0?

Floating point values are inexact, which is why we should rarely use strict numerical equality in comparisons. For example, in Java this prints false (as seen on ideone.com):[详细]

2023-01-14 07:09 分类：问答