File list (Check if you may need any files):
Gauss\.classpath
.....\.project
.....\.settings\org.eclipse.jdt.core.prefs
.....\bin\Jama-1.0.2.jar
.....\...\Subtraction\Subtraction.class
.....\...\arithmetic\Gauss.class
.....\...\..........\Inverse.class
.....\...\gaussMain\GaussMain.class
.....\...\initial\Init.class
.....\...\multiplication\multiplication.class
.....\...\out\Out.class
.....\...\roundPool\RoundPool.class
.....\...\unit_matrix\Unit_matrix.class
.....\src\Jama-1.0.2.jar
.....\...\Subtraction\Subtraction.java
.....\...\arithmetic\Gauss.java
.....\...\..........\Inverse.java
.....\...\gaussMain\GaussMain.java
.....\...\initial\Init.java
.....\...\multiplication\multiplication.java
.....\...\out\Out.java
.....\...\roundPool\RoundPool.java
.....\...\unit_matrix\Unit_matrix.java