P=catenanm(5);
uiopen('/home/accounts/personale/clrmrc90/aa1011/sistemi_stocastici/invariantSIM.m', true);
invariantQR(P)

ans =

    0.0043    0.0520    0.1863    0.5431    0.2143

invariantSIM(P,100)

ans =

         0    0.0400    0.1800    0.5400    0.2400

invariantSIM(P,1000)

ans =

    0.0030    0.0800    0.2050    0.5330    0.1790

invariantSIM(P,5000)

ans =

    0.0040    0.0522    0.1766    0.5462    0.2210

randexp(1/2)

ans =

    1.8298

randexp([1/2,1/2])

ans =

    0.1891    7.6539

randexp([1/2,1/3])

ans =

    2.1170    1.8549

ceil(2.1)

ans =

     3

Narrivi=5

Narrivi =

     5

Nservizi=7

Nservizi =

     7

lambdaa=randexp(a*Narrivi);
??? Undefined function or variable 'a'.

lambdaa=randexp(1*Narrivi);
lambdab=randexp(1.5*Nservizi);
arrivi=cumsum(lambdaa);
servizi=cumsum(lambdab);
lambdaa=randexp(1*ones(Narrivi,1));
lambdaa

lambdaa =

    1.7371
    0.3989
    2.8353
    0.2799
    3.1491

lambdab=randexp(1.5*ones(Nservizi,1));
arrivi=cumsum(lambdaa);
servizi=cumsum(lambdab);
arrivi

arrivi =

    1.7371
    2.1360
    4.9713
    5.2512
    8.4003

servizi

servizi =

    0.4767
    1.0310
    4.4108
    5.3935
    5.6445
    5.6843
    5.7143

arrivi=[arrivi,ones(5,1)]

arrivi =

    1.7371    1.0000
    2.1360    1.0000
    4.9713    1.0000
    5.2512    1.0000
    8.4003    1.0000

servizi=[servizi,-ones(7,1)]

servizi =

    0.4767   -1.0000
    1.0310   -1.0000
    4.4108   -1.0000
    5.3935   -1.0000
    5.6445   -1.0000
    5.6843   -1.0000
    5.7143   -1.0000

tempi=[arrivi;servizi]

tempi =

    1.7371    1.0000
    2.1360    1.0000
    4.9713    1.0000
    5.2512    1.0000
    8.4003    1.0000
    0.4767   -1.0000
    1.0310   -1.0000
    4.4108   -1.0000
    5.3935   -1.0000
    5.6445   -1.0000
    5.6843   -1.0000
    5.7143   -1.0000

sortrows(tempi)

ans =

    0.4767   -1.0000
    1.0310   -1.0000
    1.7371    1.0000
    2.1360    1.0000
    4.4108   -1.0000
    4.9713    1.0000
    5.2512    1.0000
    5.3935   -1.0000
    5.6445   -1.0000
    5.6843   -1.0000
    5.7143   -1.0000
    8.4003    1.0000

simulacodamm1
Elapsed time is 5.642955 seconds.
Elapsed time is 1.008877 seconds.
simulacodamm1
Elapsed time is 5.355237 seconds.
Elapsed time is 0.969183 seconds.
simulacodamm1
Elapsed time is 8.206122 seconds.
Elapsed time is 1.097887 seconds.
simulacodamm1
Elapsed time is 8.811727 seconds.
Elapsed time is 1.216369 seconds.
diary off