Programming questions that are significantly affected or best defined by the underlying mathematics of the problem.

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6
votes
2answers
1k views

Fractional and Cartesian Coordinates

I have a set of fractional coordinates. I also have a rotation matrix that operates on cartesian coordinates. Does anyone know how I could convert my rotation matrix so I can operate on the ...
4
votes
3answers
2k views

What Discrete Mathematics topics should the average computer science student know?

I know that Discrete Mathematics is a pretty broad topic that's used in a number of fields but I was just wondering what are some of the topics from it that you would expect an average computer ...
1
vote
2answers
646 views

1 to 1 Comparison and Ranking System

I'm looking to create a comparison and ranking system which allows users to view 2 items, click on the one that they feel is the better one and then get presented with 2 more random items and continue ...
7
votes
1answer
3k views

Can one edit a built-in Python module?

I'm currently learning Python and I'm at the point in the book about using the Math library. I looked on the Python website and noticed the library was a bit scarce and am writing some more useful ...
0
votes
2answers
361 views

why is a naturally ordered set generated at 9 but not 10 digits

code found at: fatal error...Java Runtime Environment: EXCEPTION_ACCESS_VIOLATION Presuming that the problem indicated above is due to the test app and not due specifically to method ...
9
votes
8answers
4k views

How can calculus and linear algebra be useful to a system programmer? [closed]

I found a website saying that calculus and linear algebra are necessary for System Programming. System Programming, as far as I know, is about osdev, drivers, utilities and so on. I just can't figure ...
4
votes
2answers
365 views

Layout of mathematical views (iOS)

I am trying to figure out the right way to encapsulate graphical information about mathematical objects. It is not simple. For example, a matrix can include square brackets around its entries, or ...
31
votes
5answers
14k views

Return random `list` item by its `weight`

I have, for example, this table +-----------------+ | fruit | weight | +-----------------+ | apple | 4 | | orange | 2 | | lemon | 1 | +-----------------+ I need to return random ...
11
votes
5answers
731 views

Long term plan of attack to learn math? [closed]

I am a web-developer with a desire to expand my skill-set to mathematics relevant to programming. As 2nd career, I am stuck in college doing some of the requirements while working. I was hoping the ...
4
votes
11answers
7k views

Where is the application of Calculus (of continuous quantities) in Computer Science or programming [closed]

I am a Software Engineer professional. I have studied calculus as a core course in my graduation studies. I want to ask question, that what/where is the implementation of calculus in computer science? ...
2
votes
2answers
626 views

What maths should I learn to become a better computer scientist? [closed]

I'm a self taught programmer, and although I know many people feel math isn't necessary, I find that in many examples of algorithms I come across talk about (what sounds to be) some pretty complex ...
1
vote
3answers
655 views

Calculate Ellipse based on 4 points

I need to move an object based on 100 images rotating. The object needs to move in a path that is forming an ellipse when I'm rotating the image based on my gestures. I have 4 points, 2 pairs of ...
3
votes
2answers
209 views

Do Databases Optimize Queries with Sum/Average or Other Aggregates?

Imagine a database that has billions of rows with, say, payments. You need to calculate an average payment sum. That will be SELECT avg(amount) FROM payments; Now, if you need to re-calculate this ...
0
votes
1answer
262 views

How important is maths depending on what your coding? [duplicate]

Possible Duplicate: What does mathematics have to do with programming? How often do you have to solve pure mathematical or algorithmical problems? I heard that math can be very important in ...
3
votes
1answer
1k views

Where should I start learning math with regards to programming [duplicate]

I've created several systems already, a web based menu system, a payroll system and I am currently developing a patient administration system, I know java,C,C++ C#, javascript PHP and other ...
73
votes
26answers
41k views

What does mathematics have to do with programming? [closed]

I just started a diploma in software development. Right now we're starting out with basic Java and such (so right from the bottom you might say) - which is fine, I have no programming experience apart ...
3
votes
1answer
918 views

What will generate an adjacency matrix file with a specified topology for me?

I am writing an application that takes some file specifying an adjacency matrix and uses this to construct a graph (in this case, a directed social network). What I would like to do is specify the ...
4
votes
3answers
2k views

What function or method can I use to equally distribute a workload

This is more of mathematical question than an algorithmic one; nevertheless it will be implemented in php. I have an array of N tasks. Each task has taken t time to complete(e.g. task 1 has taken 5 ...
3
votes
1answer
626 views

Is the Leptonica implementation of 'Modified Median Cut' not using the median at all?

I'm playing around a bit with image processing and decided to read up on how color quantization worked and after a bit of reading I found the Modified Median Cut Quantization algorithm. I've been ...
2
votes
3answers
2k views

How do I determine how many numbers are in a floating point number system?

I'm trying to make floating point number systems a bit more intuitive for myself. There are a few things I am confused about, and I think the best way to clear up my confusions would be for someone ...
8
votes
12answers
4k views

Is it possible to learn maths via programming, or you should learn maths for programming? [closed]

I am not the best in maths, not very horrid either, but lower than the average, I've always been thinking to improve my maths, but schools and books didn't do the job because I get bored too fast. The ...
12
votes
3answers
5k views

Handling extremely large numbers in a language which can't?

I'm trying to think about how I would go about doing calculations on extremely large numbers (to infinitum - intergers no floats) if the language construct is incapable of handling numbers larger than ...
8
votes
1answer
369 views

Why is a Bayes classifier used for spam filtering?

I've been reading about Bayesian spam filtering and I think I understand the theory, but I just don't see why this approach is needed in order to calculate the likelihood of a message being spam, ...
7
votes
5answers
13k views

How to handle large numbers? [duplicate]

Well, I've just started doing puzzles and it's so annoying to see puzzles which are easy to do but also need to handle very large numbers. That's the problem. Say I have to deal with numbers like 10 ...
8
votes
7answers
3k views

What would be an appropriate algorithm to factorise numbers in the range of a few billion?

I'm learning Python at the moment and to give me reasons to apply what i'm learning I'm having a crack at some of the problems on Project Euler I'm currently on number 3, which is to determine the ...
4
votes
5answers
2k views

Why disallow int-to-short assignment but allow multiplication and other math?

In Java, the following code does not compile: int val = 1; short shortVal = val; // Incompatible types Anyone know why Java chooses to complain about this assignment, instead of simply truncating, ...
4
votes
1answer
742 views

Is there a formula to figure out the total execution time of sequential asyncronous processes?

I have a set of steps that need to run sequentially over a list of data. However each step only operates on a single piece of data at a time. Because of this, I can run the steps asynchronously. For ...
3
votes
3answers
3k views

How does a website like Mathway work?

I recently found a website called Mathway Basically, it works by allowing you to choose your "level of math" (which it uses to determine what tools it should provide to you) and then allows you to ...
4
votes
3answers
2k views

CPU Architecture and floating-point math

I'm trying to wrap my head around some details about how floating point math is performed on the CPU, trying to better understand what data types to use etc. I think I have a fairly good ...
30
votes
17answers
4k views

Introducing Programming To a Mathematician [closed]

I currently am a programmer, I'm almost 16 years of age and have pretty much narrowed my careers down to something involving a Computer Science degree or Electrical Engineering degree (I know they are ...
18
votes
7answers
2k views

How can a large, Fortran-based number crunching codebase be modernized?

A friend in academia asked me for advice (I'm a C# business application developer). He has a legacy codebase which he wrote in Fortran in the medical imaging field. It does a huge amount of number ...
20
votes
11answers
1k views

How is fundamental mathematics efficiently evaluated by programming languages?

As I get more and more involved with the theory behind programming, I find myself fascinated and dumbfounded by seemingly simple things.. I realize that my understanding of the majority of fundamental ...
-1
votes
4answers
341 views

What other languages, beside Transact SQL, state that 22/7 is equal to 3? [closed]

I was using Microsoft SQL Query Analyzer the other day and wrote a very simple select statement: SELECT 22/7 as [PI Equiv] I was suprized that the result was 3, when I was expecting to see ...
6
votes
6answers
362 views

Formatting 'Complex' Math

Note: by 'complex' math I mean an equation with many steps involved and a wide mix of operators. A programmer should know the order that operators are evaluated in an equation. However it can be a ...
17
votes
4answers
3k views

why are all the functional programming tutorials so mathy?

I've been trying to learn functional programming and most tutorials I have found use math as examples for the more complicated constructs (even the simple ones in some cases). Why is this? I would ...
12
votes
11answers
355 views

Should 'mathematical' functions follow mathematical notation?

I suppose this question is going to be immediately flagged as subjective, but which do you think is better: double volume(double pressure, double n_moles, double temperature) { return n_moles * ...
4
votes
1answer
527 views

Using Quadratic Bezier Curves to generate a cave that stays within certain bounds

I'm working on a project that generates a series of quadratic bezier curves and connects them together, maintaining slope from the end of one segment to the beginning of the next to make the ...
5
votes
5answers
11k views

Math Major wants to become a Software Engineer [closed]

I am a math major, what would be the best field of computer science/computer engineering for me to go into, where I could apply my skills that I used as a math major (i.e. Linear Algebra, Real ...
22
votes
4answers
22k views

Prerequisite math skill for Introduction to Algorithms (CLRS) book [closed]

I already have knowledge about basic algorithms. Now I plan to study more advance algorithms and I decide to go with Introduction to Algorithms. I'm not sure, do I need to refresh my math's skill ...
5
votes
5answers
849 views

Which language should I use for a computationally intensive program? [closed]

This is a multi-part question. I am writing a computationally intensive program that will perform computations on very large numbers, on the scale of factorial(100) . I'm considering using Java or C++ ...
0
votes
1answer
391 views

Developing basic drawing tool involving lines, curves [closed]

I am developing a CAD - drawings to CNC machine code software. These CNC's have sort of a Instruction set which receive parameters,etc to do some blah blah job. I am quite comfortable with the CNC ...
1
vote
1answer
236 views

Help me understand this “mindmap / constellation” visual pattern

Please help me identify and understand this visual pattern, what's the common name used for such mindmap / constellation visualisations? http://asterisq.com/products/constellation/roamer/demo ...
8
votes
3answers
2k views

What is the best way to keep track of the median?

I read a question, and I'm looking for input on how to solve it: Numbers are randomly generated and stored into an (expanding) array, How would you keep track of the median? There are two data ...
6
votes
5answers
7k views

What skills are needed for machine learning jobs? [closed]

I posted this question on Quora, but didn't get enough responses. reposting it here. I am a learner sitting at home and learning linear algebra, very interested on working in Machine Learning ...
7
votes
0answers
817 views

Math underpinnings of software testing? [duplicate]

In my software engineering course, we recently (briefly) covered testing. Over the course of the discussion some topics came up that made me wonder about the math underlying software testing (such as ...
5
votes
3answers
714 views

All possible solutions to equation, where operators are arbitrary?

Given something like this: 1 5 3 4 = 18 I need to determine (using an algorithm) if there is a combination of operators and brackets that bring me to 18. Only "+" and "*" and "(" and ")" are ...
13
votes
9answers
4k views

Pure vs Applied Math For Programmers [closed]

Math has always been my thing in that I've always found the subject easy. Computer Science is my second love, though. Given the choice, I would prefer to major in Math. Since the only careers one ...
4
votes
8answers
6k views

What specific branches of Mathematics are useful for a programmer to learn? [closed]

I have less than 6 months to learn mathematics for my Master course in CS. (With no prior formal education in any computer/mathematics related area.) So I need to prepare my self to be tested on math ...
12
votes
5answers
11k views

Recomendation for Math books related to computer science [duplicate]

Possible Duplicate: Is there a canonical book on mathematics for programmers? I need your recommendation for math books related to computer science in these areas: Boolean Algebra ...
3
votes
4answers
5k views

TEA algorithm constant 0x9e3779b9 said to be derived from golden ratio, but the golden number is 1.618?

I'm trying to understand a constant 0x9e3779b9. What kind of data is this? It's not binary, not decimal, what is this? It's a constant used on the TEA algorithm. It says it's derived from the golden ...