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mamus
@mamus
January 2021
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Bonjourqu quelquun peux m'aidez un dm de maths à faire et je suis bloque je ne comprends pas du tout
Si vous plaît merci davance
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Amateur
Bonjour
Voici les parties 4,5,6 en Xcas
fonction FindCoeff(coef_c,coef_h)
local LOC_A,INV_LOC_A,LOC_B,LOC_X,t,r,rep;
purge(LOC_A,LOC_B,LOC_X,INV_LOC_A,t,r,rep);
LOC_A:=[[coef_c,0,-1],[coef_h,0,0],[0,2,-2]];
LOC_B:=transpose([0,2*t,t]);
INV_LOC_A:=inverse(LOC_A);
LOC_X:=INV_LOC_A*LOC_B;
r:=lcm(denom(LOC_X[0,0]),denom(LOC_X[1,0]),denom(LOC_X[2,0]) );
rep:=substituer(LOC_X,t=r);
retourne rep[0,0],rep[1,0],rep[2,0],r;
ffonction:;
assume (x,integer),(y,integer),(z,integer),(t,integer):;
purge(x,y,z,t):;
x,y,z,t:=FindCoeff(4,10):;afficher(concat(string(x)," C4H10 +",string(y)," O2 --> ",string(z)," CO2 +",string(t)," H2O" ) );
x,y,z,t:=FindCoeff(3,8):;afficher(concat(string(x)," C3H8 +",string(y)," O2 --> ",string(z)," CO2 +",string(t)," H2O" ) );
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Voici les parties 4,5,6 en Xcas
fonction FindCoeff(coef_c,coef_h)
local LOC_A,INV_LOC_A,LOC_B,LOC_X,t,r,rep;
purge(LOC_A,LOC_B,LOC_X,INV_LOC_A,t,r,rep);
LOC_A:=[[coef_c,0,-1],[coef_h,0,0],[0,2,-2]];
LOC_B:=transpose([0,2*t,t]);
INV_LOC_A:=inverse(LOC_A);
LOC_X:=INV_LOC_A*LOC_B;
r:=lcm(denom(LOC_X[0,0]),denom(LOC_X[1,0]),denom(LOC_X[2,0]) );
rep:=substituer(LOC_X,t=r);
retourne rep[0,0],rep[1,0],rep[2,0],r;
ffonction:;
assume (x,integer),(y,integer),(z,integer),(t,integer):;
purge(x,y,z,t):;
x,y,z,t:=FindCoeff(4,10):;afficher(concat(string(x)," C4H10 +",string(y)," O2 --> ",string(z)," CO2 +",string(t)," H2O" ) );
x,y,z,t:=FindCoeff(3,8):;afficher(concat(string(x)," C3H8 +",string(y)," O2 --> ",string(z)," CO2 +",string(t)," H2O" ) );