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The Maxima on-line user's manual

Algebra Calculator

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Propvars

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.

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);

(%o1)                                true
(%i2) 

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