marcorealacci/so-un-bot
1
0
Fork 0
mirror of https://github.com/appinfosapienza/so-un-bot.git synced 2025-05-07 03:19:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Added 2021-03-29 exam

Browse source
This commit is contained in:
Federico Pizzari 2022-11-14 14:50:34 +01:00
parent d2b06855c6
commit 6be029493b
177 changed files with 1133 additions and 1628 deletions
Download patch file Download diff file Expand all files Collapse all files

30
Ingegneria del Software/0321_26/correct.txt Normal file
View file

@ -0,0 +1,30 @@
<pre>
model System
Integer y;
Real r1024;
Integer state1024[Modelica.Math.Random.Generators.Xorshift1024star.nState];
equation
y = if (r1024 <= 0.3) then 1 else 0;
algorithm
when initial() then
state1024 := Modelica.Math.Random.Generators.Xorshift1024star.initialState(614657, 30020);
r1024 := 0;
elsewhen sample(0,1) then
(r1024,state1024) := Modelica.Math.Random.Generators.Xorshift1024star.random(pre(state1024));
end when;
end System;
</pre>

1
Ingegneria del Software/0321_26/quest.txt Normal file
View file

@ -0,0 +1 @@
Si consideri l'ambiente (use case) che consiste di un utente che, ad ogni unità di tempo (ad esempio, un secondo) manda al nostro sistema input 1 (ad esempio, esegue una prenotazione) con probabilità 0.3 oppure input 0 con probabilità 0.7. Quale dei seguenti modelli Modelica rappresenta correttamente tale ambiente.

28
Ingegneria del Software/0321_26/wrong 1.txt Normal file
View file

@ -0,0 +1,28 @@
<pre>
model System
Integer y; Real r1024;
Integer state1024[Modelica.Math.Random.Generators.Xorshift1024star.nState];
equation
y = if (r1024 <= 0.3) then 0 else 1;
algorithm
when initial() then
state1024 := Modelica.Math.Random.Generators.Xorshift1024star.initialState(614657, 30020);
r1024 := 0;
elsewhen sample(0,1) then
(r1024,state1024) := Modelica.Math.Random.Generators.Xorshift1024star.random(pre(state1024));
end when;
end System;
</pre>

27
Ingegneria del Software/0321_26/wrong 2.txt Normal file
View file

@ -0,0 +1,27 @@
<pre>
model System
Integer y; Real r1024;
Integer state1024[Modelica.Math.Random.Generators.Xorshift1024star.nState];
equation
y = if (r1024 >= 0.3) then 1 else 0;
algorithm
when initial() then
state1024 := Modelica.Math.Random.Generators.Xorshift1024star.initialState(614657, 30020);
r1024 := 0;
elsewhen sample(0,1) then
(r1024,state1024) := Modelica.Math.Random.Generators.Xorshift1024star.random(pre(state1024));
end when;
end System;
</pre>