Symja can be used as computer algebra system in a REPL featuring Mathematica-compatible syntax and functions.

Make sure that a Java 11 runtime environment (JRE 11) is installed. At a terminal you can type java -version to see if it is installed.

Download the latest Symja release from

• github.com/axkr/symja_android_library/releases

Unzip the download in a separate folder and modify the symjamma.bat file to use your Java 8 installation path to run the Symja MMAConsole:

"%JAVA_HOME%\bin\java" -classpath "lib/*" org.matheclipse.io.eval.MMAConsole 

Alternatively, if you're using Maven you can run this Maven command:

mvn -f pom.xml exec:java@mma -pl matheclipse-io 

The available predefined function names in the console are described in the

• /doc/functions folder

You can load a package with the Get[] function like this:

Get["./data/test.m"]

and call for example the f[] or g[] functions defined in test.m:

>> f[2] In[2]:= f[2] Out[2]= 4 >> g[3] In[3]:= g[3] Out[3]= 81 >> 

Other examples for using or programming packages can be found here

There are additional arguments to run MMAConsole and get the result back to the caller

• -c or -code run the command
• -f or -function -args arg1 arg2 run the function

>> 24/60 2/5 >> N[24/60] 0.4 >> Sin[30*Degree] 1/2 >> Sin[Pi/2] 1 >> a+a+4*b^2+3*b^2 2*a+7*b^2 >> Solve[{x^2-11==y, x+y==-9}, {x,y}] {{x->-2,y->-7},{x->1,y->-10}} >> DSolve[{y'[x]==y[x]+2,y[0]==1},y[x], x] {{y[x]->-2+3*E^x}} >> Integrate[Cos[x]^5, x] Sin[x]-2/3*Sin[x]^3+Sin[x]^5/5 >> D[Sin[x]^3,x] 3*Cos[x]*Sin[x]^2 >> Factor[-1+x^16] (-1+x)*(1+x)*(1+x^2)*(1+x^4)*(1+x^8) >> Factor[5+x^12, Modulus->7] (2+x^3)*(5+x^3)*(4+x^6) >> Expand[(-1+x)*(1+x)*(1+x^2)*(1+x^4)*(1+x^8)] -1+x^16 >> Det[{{1,2},{3,4}}] -2 >> Inverse[{{1,2},{3,4}}] {{-2,1}, {3/2,-1/2}} >> FactorInteger[2^15-5] {{3,1},{67,1},{163,1}} >> Refine[Abs[n*Abs[m]], n<0] -n*Abs[m]