ChENGINEER SPACE

Scilab is an open source plat­form for numer­i­cal com­pu­ta­tion pro­vid­ing a pow­er­ful open com­put­ing envi­ron­ment for engi­neer­ing and sci­en­tific appli­ca­tions.
Since 1994 it has been dis­trib­uted freely along with the source code via the Inter­net. It is cur­rently used in edu­ca­tional and indus­trial envi­ron­ments around the world. Scilab is now the respon­si­bil­ity of the Scilab con­sor­tium, launched in May 2003. There are cur­rently 18 mem­bers in Scilab Con­sor­tium (Phase II).
Scilab includes hun­dreds of math­e­mat­i­cal func­tions with the pos­si­bil­ity to add inter­ac­tively pro­grams from var­i­ous lan­guages (C, C++, For­tran?).
It has sophis­ti­cated data struc­tures (includ­ing lists, poly­no­mi­als, ratio­nal func­tions, lin­ear sys­tems…), an inter­preter and a high level pro­gram­ming language.

Scilab is very sim­i­lar to com­er­cial soft­ware Mat­lab from Math­Works, Inc. Scilab also pro­vides a tool of block dia­gram modeler/simulator Sci­cos (equiv­a­lent to Mat­lab Simulink). In other words, any Mat­lab user can eas­ily use Scilab with­out much lose in functionality.

Project site:

• http://www.scilab.org

Screen­shots:

Main Scilab GUI

Sci­cos GUI

Max­ima is an open-source sys­tem for the manip­u­la­tion of sym­bolic and numer­i­cal expres­sions, including:

• Dif­fer­en­ti­a­tion
• Inte­gra­tion
• Tay­lor series
• Laplace trans­forms
• Ordi­nary dif­fer­en­tial equations
• Sys­tems of lin­ear equations
• Poly­no­mi­als
• Sets, lists, vec­tors, matri­ces, and tensors.

Max­ima yields high pre­ci­sion numeric results by using exact frac­tions, arbi­trary pre­ci­sion inte­gers, and vari­able pre­ci­sion float­ing point num­bers. Max­ima can plot func­tions and data in two and three dimensions.

The Max­ima source code can be com­piled on many sys­tems, includ­ing Win­dows, Linux, and MacOS X. There are also a com­plete doc­u­men­ta­tion sec­tion with man­u­als and tuto­ri­als in Por­tuguese, Brazil­ian Por­tuguese, Span­ish, Ital­ian, French, Ger­man, Greek, Chi­nese, and Slovak.

Project site:

• http://maxima.sourceforge.net

Screen­shot:

xMax­ima for Windows