Open Source Mathematica Software

Symja - computer algebra language and Java symbolic math library. Moved to https://github.com/axkr/symja_android_library. The Android App can be found at: https://github.com/axkr/symja-example

extra astronomical / calendar / epoch features that mathematica does not have. has many new functions. supports multiple calendars (julian, gregorian, synodic, anomalistic). supports JDN conveniently, shows moon phase est. NEW: supports day number from 0 of any calendar conversion all-way between supported calendars supports multiple epochs and epoch generation. convert between some epochs without calendar support, ie, J2000.0, JDN, to some effect can create/import epochs and use TAI clock << Months`Months` {PrettyDate[], PrettyDate[calendarChange2[Date[], gregorian, julian], julian], MoonPhase[]} {"Sunday, July 13 2014. 2:37:04 p.m. -4 GMT", "Saturday, Iunius 30 2014. 2:37:04 p.m. -4 GMT", "Full Moon"} timeDeduce, a minor extra: deduce and show other times / angles, using time eqn. input: GMT,lon,tz,arieslon output: input + SHA,Ra,LHA ; in dn,tm or ang (for historic reasons files are also in https://sourceforge.net/projects/periodictablemm/)

The Arduino routines (.ino) control light-on timing under various entrainment schemes and measures general movements using PIR and the light level using CdS in three animal chambers. Requires Arduino 1.0 and Arduino hardwares (Uno or Mega). 1. _3ChambersEPLPDD.ino: 12-12 LD to long photoperiod 2. _3ChambersTCycle.ino: 12-12 LD to T=23/T=25 cycles (Note: A critical error has been found in _3ChambersTCycle.ino. It will not be available until the error is fixed. 14-SEP-2012)

Simulate toll gates queues on Mathematica 7.

Keywords: -simultaneously fit several SAXS and SANS data sets with polydisperse (Schultz-Zimm or Gaussian distribution f(R)) spherical core-shell-shell nanoparticles -analytical expressions are used for from factor F(Q) and its integral over f(R), no numerical integration required -absolute units -Mathematica is required via console (MathKernel) -Mathematica's local and global optimizers (simulated annealing, differential evolution, Nelder-Mead, ...) can be used -range for fit parameters and further constraints between fit parameters are possible -Monodisperse(!) hard sphere structure factor can be used, too -long computation times (depending on problem size and amount of constraints) from hours to a few days are possible -non-parallelized code

A suite of libraries and applications using genetic algorithms and AI for financial analysis and simulation. Currently the focus is to route FIX messages to an exchange simulator and use genetic algorithms to explore algorithmic trading strategies.

ImagingAnalysis is a Mathematica package that performs grid-based analysis of time-lapse imaging data saved in a sequence of TIFF files. This package requires Mathematica 7.0. Revised on 14 May 2017: Bugs are fixed and incompatibility issues are resolved. The current version runs on Mathematica 11.

A university project explaining a phenomenon of a coin tossing game called Penney Ante. Penney Ante is a coin tossing game invented in 1969 by a mathematician called Walter Penney. It is played by two players. Each player selects a pattern of three heads and tails. The two patterns must be different. The players then flip a fair coin repeatedly until one of the patterns appears. The winner is a person whose pattern appears first. Although initially the game appears to be fair, it is not in general. There is no best pattern that beats all others. The best we can do is let our opponent go first and then choose the best possible option that beats his particular pattern. To do so we need to be able to define relations between each two patterns. And this is where the fun begins. To run the project use PenneyAnte.nb Open .nb files using Mathematica. You can also use CDF Player but in this case .nb files will not function interactively. See wiki for a full project description.

PTE-1.5 is for Mathematica 11.1 (not mm14 - needs ver change fixing) PTE-1.4 and prev for Mathematica 4.0 linux PTE generates periodic tables from variable data (the data and layout can be changed for a particular subject). Includes Pauli Exclusion makers and some data. Charts can be browsed with an iPhone nicely (may need .jpg, .gif nicer). It's printable at a small size. Layout change un-restricted but is non-interactive. which is good and bad: it does the job. CreateModule creates a Function from roped lines,: eval lines freely form while working, creates function from that auto. The following now have their own page now and new Mathematica 11 versions: older versions are on download page for historic url reasons. http://sourceforge.net/p/fnbookform2formathematica/ http://sourceforge.net/p/nchineseremainders/ http://sourceforge.net/p/months4mathematica/ also: READMEs, .nb, miscellany in Files

fNBookForm2 prints a number in Textbook Form with powers abbreviations in place of exponents (default). Output is a compressed dressed form textbooks use for significant figures tables. Easy, quality, comprehensive. booknum reads such. an important aspect is that the result maintains both accuracy and precision and has rounding control. doing this sometimees requires careful planning (error-prone complicated conversions). can read them back from textbook (into Mathematica) preservingly (for historic reasons files were also in https://sourceforge.net/projects/periodictablemm/)

"chinese remainder" solves a system of equations over modulus quickly. crtwo is an improvement to Mathematica's release. crtwo: solves Chinese Remainder a pair at a time, (uses gcd), yet is still fast. Which means crtwo, unlike text book soln, uses an algorithm to solve or fail one mod equation at a time. showing win or fail of each eqn and solving other sawtooth intersections is possible, due to that. crAll2@crtwo provides n soln near x for CR using width of soln crchart3 shows sawtooth CR waves and visible soln align1: solves i m2 == j m2 + b -> {i,j,dist} (like PowerMod->i but b is any and gcd(m1,m2) not req.) other funs: Euclidians, showFactors, changeBaseArr, caesar, rsa, inverseMod, IntToModTups (large number math for PC's) crfindnSolnAfterxInEqm (solve saw wave LL,RL,LR,... intersects) congruence, plots, y-shifted triangular wave solve, testing (for historic reasons files are also in https://sourceforge.net/projects/periodictablemm/)