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Questions tagged [math]

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2
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0answers
13 views

Matrix multiplication on an upper/lower triangular matrix

I am a statistician working on DNA datasets. I am writing an R package, and I will routinely need to perform matrix multiplication on upper-triangular (sparse) matrices that have hundreds-of-millions ...
1
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0answers
11 views

pdf notes with mathematical equations

I'm looking for a program where I'm able to annotate PDF files with notes, including correct mathematical equations (on mac). So far the only way I found was writing the equations with LaTeX in a ...
0
votes
1answer
41 views

Open source math editor

Because the Math have many technical symbols. In the MathOverflow site if we text the $\sin^2 \theta$ we can get the So, if there is a open source editor we can use?
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0answers
9 views

Android app for math programming?

Anyone know of an Android app specific, or well suited, to math programming? I say, 'programming', because I'd like to code math functions with: looping, conditional branching, etc. TIA!
1
vote
1answer
25 views

Spreadsheet that understands symbolic numbers

I am about to do some calculations involving Pi. These would be easy to do in a spreadsheet, but I need the result to use Pi as a symbol - not as an approximated value. Eg: A B C 1 =5 =Pi ...
0
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0answers
8 views

c++ library to find minimal surface of soap films

I'm looking for a C++ library or C library which is able to generate the minimal surface of soap films spanned in a frame, between frames or over a frame. As input I only want to hand over simple ...
2
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0answers
14 views

Extension for VS Code that evaluates math expressions?

I am looking for an extension for Visual Studio Code that can evaluate simple math expressions to save time. Sometimes I fiddle around with numbers, and add constants to expressions to save time so I ...
2
votes
0answers
42 views

Free software for Mac OS to Execute and test Mathematical formulas?

Recently I have downloaded the trial version Of Wolfram Mathematica on Mac OS. It allowed me to write, test and execute mathematical formulas on specific range of values and view and manipulate ...
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0answers
32 views

How to turn a complex geometric figure inside out (Win 10, 64-bit)?

This question falls under several categories {software, computer graphics, graphic design, art, cartography, geographic information, mathematical transforms}, but the software (specifically for ...
1
vote
2answers
64 views

Python library for simulation and bifurcation studies of dynamical systems

What are libraries available in Python for the simulation and bifurcation study of dynamical systems? I want to simulate a model based on four or five ODEs, and build bifurcation maps, based on two ...
0
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1answer
82 views

How to organize math notes?

I need to organize all of my math notes. I would like to create a sort of library of notes, where a note can link other notes and each note is stored in plain text format (for example, Markdown + ...
0
votes
1answer
39 views

Private local wiki for structured math journal?

I want to setup a private wiki to keep a structured journal with mathematical notes. It should be as simple as possible. Here are the requirements: Simple. As simple as possible. Support math. ...
0
votes
1answer
68 views

Text-based note taking applicationg with solid math support and good organization

I am looking for something like Boostnote. However, it seems that Boostnote is not able to handle very large collections of notes. It also has some interface quirks (it scrolls up and down a bit ...
1
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1answer
72 views

Math writing tablet apps instead of LaTeX

I am not fluent in LaTeX and was wondering whether any of the new iPad pen-input apps are very useful for writing math documents more fluently than using LaTeX as a proxy language. If so, which one/...
3
votes
3answers
92 views

Easy way to manipulate equations

My office mate uses Microsoft Word to work out equations. It's easy to copy and paste equation line by line and just do a single manipulation each line. The benefit is you won't be missing factors ...
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0answers
15 views

Mathematical visualization in linux with raytracing

I am familiar with this question. I am on Arch linux, and am looking for a software the following features : Ability to plot iso and parametric surfaces. live preview Ability to export in pov-ray ...
2
votes
1answer
49 views

Math evaluation library

I am looking for a C/C++ library which does evaluate and execute math expressions. Python would be a good start but since C-Python or PyPy have a GIL this is no solution. Clang would have worked since ...
11
votes
2answers
637 views

Free mobile alternative to step-by-step-solution feature of Wolfram Alpha Pro?

Are there any free online and/or offline alternatives to the step-by-step-solution feature of Wolfram Alpha Pro that can be used on Mobile phone? This feature is able to display step-by-step-...
0
votes
1answer
18 views

Math document containing some Sage calculations

I need to write a short math text draft containing some Sage calculations. (I am a Sage novice.) What software (or software combinations) you may suggest to do this? Is it possible to do with ...
3
votes
1answer
140 views

Is there a more Electrical-Engineering or Math focused version of/alternative to Minecraft?

So my 6-year-old is a Minecraft maniac. We play together constantly and have gotten relatively deep into the game. It's an amazing game and I think the overall effect on him is positive. But while ...
2
votes
2answers
61 views

Best program for automatic equation solving?

I often have a set of equations that I need to algebraically solve for certain values. These equations are not always linear but usually, an analytic solution exists. However, I've never used an ...
3
votes
0answers
53 views

Convert pen and paper math expressions into latex

I've seen some questions about this that are somewhat dated, so I'm asking again in case something new has come up. Context: I'm a student who spends a lot of time making math notes on pen and paper. ...
5
votes
2answers
794 views

Software for doing math “by hand”

I’m using Khan Academy to brush up on my math skills. Is there an iPhone app that will let me work out problems “by hand” so I can avoid using actual paper? I tried using the built-in Notes app, ...
1
vote
1answer
186 views

C# library for 3D math (rotation)

I am working on a C# project where I need to rotate some vectors. Until now I was using a rather complicated solution using rotation matrices but now I also need support for quaternion rotation (and ...
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0answers
18 views

Online tool to graph functions in c-like languages

Is there a website where I can enter in functions from integers to integers in a c-like programming language (with while loops, if/else etc.) and see a graph of the results? This website doesn't do ...
1
vote
2answers
171 views

Plot simple vectors, that go from the origin of the plane to a given point, in a 3d space

I want to be able to plot simple vectors (not vector fields or anything more fancy) in a 3d space, like some lines each with an arrow head that go from the origin of the plane to any other given point....
1
vote
1answer
55 views

Java scientific math library to solve a string

I'm doing a scientific calculator app but I don't know which library I should use. I need a library that can solve scientific math expressions and if it can solve functions even better. I'm looking ...
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0answers
27 views

Any library to symbolically solve system of PDEs in the form of expansion series?

I would like to use expansion series, more specifically power series, to solve a system of partial differential and algebraic equations (not sure what to call it, DAE or ADE?!) I have found some nice ...
2
votes
2answers
42 views

Reverse graph visualization

Graph visualizers, such as Graphviz, can take a formal representation of the nodes and edges of a graph and produce an image from them. What's a program or programming library that can do the reverse; ...
2
votes
0answers
30 views

extended precision sparse matrix solver

I am looking for a sparse matrix direct solver using extended precision (128-bit floating point). Is anyone aware of a package (SuperLU, UMFPACK, etc.) that supports extended precision?
1
vote
1answer
156 views

quad precision blas/lapack

What is the best blas/lapack library for quad precision (128 bit floating point)? I supposes that the reference fortran versions can be compiled as quad precision? This library would need to be ...
3
votes
2answers
1k views

Java equivalent to NumPy

In the Python world, if I have some number crunching to do, I use NumPy and it's friends like Matplotlib. Now I have an Android/Java application and the need arises to crunch some numbers and I am ...
3
votes
3answers
214 views

A number cruncher software that can work with very large numbers

I am looking for a software that is able to crunch very large numbers, i.e. numbers exceeding 100 (or thousands of) digits. It needs to be able to perform basic operations on them as well as others ...
2
votes
0answers
24 views

web based open source solution for plot function

We know there are some solutions for rendering LaTeX mathematical content on the web, for example MathJax. Is there a similar way (Open source library because I need to use it in an application) to ...
3
votes
0answers
50 views

Program that can create equation from numbers and result?

I need something, that can do this thing: I have number 5, 5 and result 25. The program return 5*5. Another example: I have 7 and result 49. The program return 7². (of course with more complex ...
2
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0answers
28 views

Offline Number Gossip

Number Gossip is a website that allows you to enter a number and it gives you some properties of that number. For instance, 42 is a Cake, Catalan, and Pronic number. It is pretty simple task and 'What ...
0
votes
0answers
25 views

Looking for C++ library that symbolically solves systems of set-subset equations

I'm looking for a library (preferably C++ and open source) which can solve and/or reduce systems of equations about sets and subsets. Note that I'm not asking for something which computes results of ...
3
votes
2answers
75 views

Word processor for math and code?

I'm looking for a graphic word processor who can support LaTeX such as Stack Exchange just by writing $\formula$, but also code writing. It's for taking my notes in my IT - math class.
2
votes
1answer
462 views

C++ differentiation library

I have a string with some expression and I want get string with derivative of this expression. For example: std::string s = "x^2 - 6*x + 5"; std::string s2 = differentiate(s); std::cout << s2; ...
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0answers
10 views

Fourier sine and cosine transformation tool

I need web apllication which can give me output of fourier series, but whith sine and cosine. Wolfram can only output with e: http://www.wolframalpha.com/input/?i=trigonometric+Fourier+series+x%5E2 ...
1
vote
1answer
33 views

Solve an nth degree equation online?

I know that there is no analytical solution but numerical methods can do it. I just can't find any site or easy access to a solver. Specifically, I want to calculate growth rate for instance solve x=...
2
votes
2answers
106 views

Fast (approximate?) linear programming solver for few variables and many constraints

I'm writing some code in C++, and it turns out I need to solve an optimization problem which may be formulated using m variables and n linear constraints (i.e. constraint i is of the form a_{i,j}*x_j >...
2
votes
0answers
42 views

Library for quad or arbitrary precision math (just +-*/ required) in C for ARM microcontroller

I have an embedded ARM based Atmel SAM4 microcontroller performing a small and rather trivial Infinite Impulse Response (IIR) filter on some 30 bit data in real time. The algorithm presently uses ...
1
vote
0answers
20 views

linear algebra library designed for low floating-point error

I'm looking for a C++ (possibly C) library for performing computationally-intensive linear algebra operations on massive floating-point data - from the simplest computation of the norm of a large ...
0
votes
2answers
30 views

Free gui-based math software to work with matrices

I am studiying linear algebra and during my studies have a need to do simple calculations on matrices, e.g.: multiple couple of matrices invert a matrix etc I am looking for something free and ...
0
votes
1answer
26 views

Solve Algebra Equations in bulk

I need a program that will solve a bunch of algebra equations from a list and output all the answers ex: 1+1 2+2 out: 2 4 I am using windows 7
0
votes
2answers
32 views

What can I use to simulate dependency of variables?

I'd like to write the relationship between 2, 3 or even more variables and plotting out that in 2 and possibly 3 dimensional graphs, with the ability to calculate the possible range of the other ...
2
votes
1answer
60 views

Write an article/web-document with mathematical formulas; Android/Windows

As I travel I sometimes like to jot down notes that maybe, one day will become an article or even a book. At least I can have that as a goal :) I wish to write simple body text, include images and ...
5
votes
3answers
146 views

what is the graphing software that can plot points?

Initiating the study on graphs and functions requires a lot of graphing to do. So I thought of downloading a utility for drawing graphs, but the software I did download had no option that would enable ...
1
vote
1answer
32 views

Complex analysis: plotting images of curves after applying complex transforms

We're studying complex analysis transformations in the university right now (linear fractional transformation, Joukowsky transform, exponents, their compositions, etc). I'm looking for an application ...