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: propvars (<prop>) Returns a list of those atoms on the props list which have the property indicated by <prop>. Thus propvars (atvalue) returns a list of atoms which have atvalues.
![Propvars Example load("unit");
propvars("unit");
setunits([s,m,mol]);
ddot_max:0.2*mm/365/d;
/* maximale Korrosionsgeschwindigkeit */A:10*m*m;
/* Oberfläche des Apparates */M_Fe:8*g/ml/(55.9*g/mol);
/* Mol Ionen pro ml Stahl */mdot:1*kg/s;
/* Massenstrom des Produkts */xdot_na2s4:mdot/(174.24*g/mol);
/* mol Produkt pro Sekunde */xdot_Fe:A*ddot_max;
/* Ionenstrom Fe pro s */konz:xdot_Fe/xdot_na2s4;
float(1.0*konz);](http://maxima-online.org//plot.html?g=i310930114.png&t=img&db=r-638514724)
(%o1) true (%i2)