mathgis.blogspot.com
Lunchtime Playground: Fun with Mathematica: Testing Wolfram Language on a Raspberry Pi emulation
http://mathgis.blogspot.com/2013/12/testing-wolfram-language-on-raspberry.html
Lunchtime Playground: Fun with Mathematica. No advanced topic here, just some simple/silly/useless problems that slip into my mind during lunch break. Free use the contents in any way you like. Dec 2, 2013. Testing Wolfram Language on a Raspberry Pi emulation. Want to test Wolfram Language. Without a Raspberry Pi? Files you need to download for Windows platform:. QEMU 1.6.0 Binary for Windows. Qemu-1.6.0-windows.zip. 2013-09-25-wheezy-raspbian.zip as this blog is written. 3 install Mathematica Language:.
flarn2006.blogspot.com
Flarn2006's Blog: Disabling Mathematica's "Locked" attribute
http://flarn2006.blogspot.com/2013/02/disabling-mathematicas-locked-attribute.html
Downloads, tech tips, and whatever else is on my mind. Friday, February 01, 2013. Disabling Mathematica's "Locked" attribute. In Wolfram's Mathematica, there's an attribute called Locked. To make matters worse, it contains a function. That encodes Mathematica package files in a way that Mathematica is able to execute, but won't show the user, which makes it difficult to remove the offending lines of code. Mathematica 9 was recently released, and unfortunately this does not work anymore in Mathematica 9.
mathematica-bits.blogspot.com
Mathematica bits: Magic Square
http://mathematica-bits.blogspot.com/2011/01/magic-square.html
Tips for Mathematica users. Sunday, January 2, 2011. Here's an interesting tidbit I saw linked. From reddit - the following decimal expansions form a magic square. Here's how you'd check the row and column sums. Row[k ] := PadLeft[IntegerDigits[Floor[k/(v 1)*10 v] , v];. Mat = row /@ Range[v];. Posted by Yaroslav Bulatov. October 4, 2014 at 12:04 PM. Its a great posting. Thank you for sharing with us. Subscribe to: Post Comments (Atom). The Pleasure of Figuring Things Out. Can you help me?
mathematica-bits.blogspot.com
Mathematica bits: Semidefinite programming in Mathematica using CVXOPT
http://mathematica-bits.blogspot.com/2011/03/semidefinite-programming-in-mathematica.html
Tips for Mathematica users. Thursday, March 3, 2011. Semidefinite programming in Mathematica using CVXOPT. One can get access to semidefinite programming from Mathematica by using Pythonika to interface with Python's cvxopt package. For MacOS 10.6 and Mathematica 8 the following should work. Install 64-bit Python 2.7 distribution from official site. Get latest cvxopt sources. Fill correct paths in Pythonika Makefile, also add "-lstdc -framework CoreFoundation" linker flags. G = GridGraph[{4, 3}];. Gram =...
mathematica-bits.blogspot.com
Mathematica bits: Independence Polynomials with Tree Decomposition
http://mathematica-bits.blogspot.com/2011/01/independence-polynomials-with-tree.html
Tips for Mathematica users. Saturday, January 8, 2011. Independence Polynomials with Tree Decomposition. A lot of NP-hard problems on graphs become easy if you find a good tree decomposition. Essentially, tree decomposition asks for a way to take a set of small sets of vertices and connect them in a way so that vertices shared by any pair of connected sets is a separator of the graph. Two examples below show a graph on the left and it's optimal tree decomposition on the right. Posted by Yaroslav Bulatov.
mathematica-bits.blogspot.com
Mathematica bits: Making cross-words with Mathematica
http://mathematica-bits.blogspot.com/2011/02/making-cross-words-with-mathematica.html
Tips for Mathematica users. Wednesday, February 2, 2011. Making cross-words with Mathematica. A recent question on Stack Overflow. Asked how to use Mathematica to find a complete grid of words like this. Each row and each column must be a valid word. A notebook below gives a way to solve this for small grids using SAT solver, and another answer in the post gives a pattern-based approach. Posted by Yaroslav Bulatov. October 4, 2014 at 11:53 AM. Subscribe to: Post Comments (Atom). Can you help me?
mathematica-bits.blogspot.com
Mathematica bits: Cluster variation method example
http://mathematica-bits.blogspot.com/2011/02/cluster-variation-method-example.html
Tips for Mathematica users. Monday, February 7, 2011. Cluster variation method example. Cluster variation methods for search work by approximating the distribution over satisfying instances, and then using marginals of that distribution to guide the search. Here's an animation of occupation probability marginals with lambda going from 0 to 3. You can see the mass gets concentrated on nodes that are part of the largest independent set in the graph, at which point you can use greedy search. Can you help me?
mathematica-bits.blogspot.com
Mathematica bits: Coloring overlapping circles
http://mathematica-bits.blogspot.com/2011/01/coloring-overlapping-circles.html
Tips for Mathematica users. Saturday, January 15, 2011. Take some overlapping circles. Ineqs = Table[(x - 2/3 Cos[i 2 Pi/nc]) 2 (y -. 2/3 Sin[i 2 Pi/nc]) 2. RegionPlot[ineqs[ k] , {x, -2, 2}, {y, -2, 2}, PlotPoints - 35,. PlotStyle - Opacity[.2] , {k, 1, nc}]. What if we want to color overlapping regions according to how many overlaps they had? We can use "BooleanCountingFunction" as follows. BooleanCountingFunction[{k}, ineqs], {x, -2, 2}, {y, -2, 2},. PlotPoints - 100, Frame - None,. Can you help me?
mathgis.blogspot.com
Lunchtime Playground: Fun with Mathematica: Simple Guide on Geospatial Coordinates Transformation with Mathematica
http://mathgis.blogspot.com/2014/02/simple-guide-on-geospatial-coordinates.html
Lunchtime Playground: Fun with Mathematica. No advanced topic here, just some simple/silly/useless problems that slip into my mind during lunch break. Free use the contents in any way you like. Feb 19, 2014. Simple Guide on Geospatial Coordinates Transformation with Mathematica. A few questions on geospatial coordinates transformation have shown up in Mathematica.Stackexchange. Here is a very brief summary. In US, you probably likely deal with two projection systems: State Plane Coordinates System and UTM.
mathgis.blogspot.com
Lunchtime Playground: Fun with Mathematica: Geospatial function: Point in Ploygon Test
http://mathgis.blogspot.com/2014/03/geospatial-function-point-in-ploygon.html
Lunchtime Playground: Fun with Mathematica. No advanced topic here, just some simple/silly/useless problems that slip into my mind during lunch break. Free use the contents in any way you like. Mar 26, 2014. Geospatial function: Point in Ploygon Test. There is an excellent post on point in polygon test from. We have some data on Greenland icesheet thickness in format of {lon,lat, thickness}. Our goal is to make a map to show the thickness of icesheet. First try with ListDensityPlot:. Kind regards, Armin.