numerical

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How can I numerically solve equations containing Bessel functions in MATLAB?

I have confronted an equation containing Bessel functions of the first type on one side and modified Bessel functions of the second type on the other. I want to know its exact solutions (values of u).[详细]

2023-01-10 04:49 分类：问答
what's the purpose/point of the REAL() Datatype in mysql?

what\'s the purpose/point of the REAL() Datatype in mysql? You have float,double and decimal which i understand but where does the \"real\" datatype come into it? Any ideas?[详细]

2023-01-06 18:22 分类：问答
How do I type a floating point infinity literal in python

How do I type a floating point infinity literal in pytho开发者_StackOverflow中文版n? I have heard[详细]

2023-01-01 00:53 分类：问答
How can I add floats together in different orders, and always get the same total?

Let\'s say I have three 32-bit floating point values, a, b, and c, such that (a + b) + c != a + (b + c). Is there a summation algorithm, perhaps similar to Kahan summation, that guarantees that these[详细]

2022-12-27 20:24 分类：问答
Numerical Pattern Matching

A project I\'m researching requires some numerical pattern matching. My searches haven\'t turned up many relevant hits since most results tend to be around text pattern matching. The idea is we\'ll ha[详细]

2022-12-27 04:51 分类：问答
Using logarithms to normalize a vector to avoid overflow

Problem with arithmetic using logarithms to avoid numerical underflow (take 2) Having seen the above and having seen softmax normalization I was trying to normalize a vector while avoiding overflow -[详细]

2022-12-22 10:01 分类：问答
Efficiently solving sparse matrices

For solving spare matrices, in general, how big does the matrix have t开发者_JAVA技巧o be (as a rule of thumb)[详细]

2022-12-21 17:13 分类：问答
'if' scenario in an equation. How do I implement it?

Basically I\'ve been trying to make a working hours calculator and I\'ve run into a problem. When the start time\'s value is greater than the finish time (eg. start is 23 and finish is 19), the result[详细]

2022-12-21 07:54 分类：问答
Given a number series, finding the Check Digit Algorithm...?

Suppose I have a series of index numbers that consists of a check digit. If I have a fair enough sample (Say 250 sample index numb开发者_开发百科ers), do I have a way to extract the algorithm that has[详细]

2022-12-21 00:41 分类：问答
Javascript to convert string to number? [duplicate]

This question already has answers here: 开发者_C百科 How to convert a string to an integer in JavaScript[详细]

2022-12-17 20:02 分类：问答