Online Algebra Calculator
Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
Function: build_info () Prints out a summary of the parameters of the Maxima build.

build_info returns an empty string "".
(%o1) true (%i2)
![plot2d([f1_1,f1_2,f2_1,f2_2],[x,-2,3]);](http://maxima-online.org/plot.html?g=p-279499208.png&t=img&db=r-1812029461)
f1:(x-1)^2+(y)^2=2^2;
f2:(x)^2+(y-1)^2=2^2;
solve([f1,f2],[x,y]);
![plot2d([f1_1,f1_2,f2_1,f2_2],[x,-2,3]);](http://maxima-online.org/plot.html?g=p-279499208.png&t=img&db=r-1812029461)
f1:(x-1)^2+(y)^2=2^2;
f2:(x)^2+(y-1)^2=2^2;
solve([f1,f2],[x,y]);