2013_Spring.xml

<course>
  <chapter url_name="EmbeddedPythonChapter">

    <vertical url_name="Homework1">
      <problem url_name="schematic_problem">
          <schematicresponse>
            <center>
                <schematic height="500" width="600" parts="g,n,s" analyses="dc,tran"
                    submit_analyses="{&quot;tran&quot;:[[&quot;Z&quot;,0.0000004,0.0000009,0.0000014,0.0000019,0.0000024,0.0000029,0.0000034,0.000039]]}" 
                    initial_value="[[&quot;w&quot;,[112,96,128,96]],[&quot;w&quot;,[256,96,240,96]],[&quot;w&quot;,[192,96,240,96]],[&quot;s&quot;,[240,96,0],{&quot;color&quot;:&quot;cyan&quot;,&quot;offset&quot;:&quot;&quot;,&quot;plot offset&quot;:&quot;0&quot;,&quot;_json_&quot;:3},[&quot;Z&quot;]],[&quot;w&quot;,[32,224,192,224]],[&quot;w&quot;,[96,48,192,48]],[&quot;L&quot;,[256,96,3],{&quot;label&quot;:&quot;Z&quot;,&quot;_json_&quot;:6},[&quot;Z&quot;]],[&quot;r&quot;,[192,48,0],{&quot;name&quot;:&quot;Rpullup&quot;,&quot;r&quot;:&quot;10K&quot;,&quot;_json_&quot;:7},[&quot;1&quot;,&quot;Z&quot;]],[&quot;w&quot;,[32,144,32,192]],[&quot;w&quot;,[32,224,32,192]],[&quot;w&quot;,[48,192,32,192]],[&quot;w&quot;,[32,96,32,144]],[&quot;w&quot;,[48,144,32,144]],[&quot;w&quot;,[32,48,32,96]],[&quot;w&quot;,[48,96,32,96]],[&quot;w&quot;,[32,48,48,48]],[&quot;g&quot;,[32,224,0],{&quot;_json_&quot;:16},[&quot;0&quot;]],[&quot;v&quot;,[96,192,1],{&quot;name&quot;:&quot;VC&quot;,&quot;value&quot;:&quot;square(3,0,250K)&quot;,&quot;_json_&quot;:17},[&quot;C&quot;,&quot;0&quot;]],[&quot;v&quot;,[96,144,1],{&quot;name&quot;:&quot;VB&quot;,&quot;value&quot;:&quot;square(3,0,500K)&quot;,&quot;_json_&quot;:18},[&quot;B&quot;,&quot;0&quot;]],[&quot;v&quot;,[96,96,1],{&quot;name&quot;:&quot;VA&quot;,&quot;value&quot;:&quot;square(3,0,1000K)&quot;,&quot;_json_&quot;:19},[&quot;A&quot;,&quot;0&quot;]],[&quot;v&quot;,[96,48,1],{&quot;name&quot;:&quot;Vpwr&quot;,&quot;value&quot;:&quot;dc(3)&quot;,&quot;_json_&quot;:20},[&quot;1&quot;,&quot;0&quot;]],[&quot;L&quot;,[96,96,2],{&quot;label&quot;:&quot;A&quot;,&quot;_json_&quot;:21},[&quot;A&quot;]],[&quot;w&quot;,[96,96,104,96]],[&quot;L&quot;,[96,144,2],{&quot;label&quot;:&quot;B&quot;,&quot;_json_&quot;:23},[&quot;B&quot;]],[&quot;w&quot;,[96,144,104,144]],[&quot;L&quot;,[96,192,2],{&quot;label&quot;:&quot;C&quot;,&quot;_json_&quot;:25},[&quot;C&quot;]],[&quot;w&quot;,[96,192,104,192]],[&quot;w&quot;,[192,96,192,112]],[&quot;s&quot;,[112,96,0],{&quot;color&quot;:&quot;red&quot;,&quot;offset&quot;:&quot;15&quot;,&quot;plot offset&quot;:&quot;0&quot;,&quot;_json_&quot;:28},[&quot;A&quot;]],[&quot;w&quot;,[104,96,112,96]],[&quot;s&quot;,[112,144,0],{&quot;color&quot;:&quot;green&quot;,&quot;offset&quot;:&quot;10&quot;,&quot;plot offset&quot;:&quot;0&quot;,&quot;_json_&quot;:30},[&quot;B&quot;]],[&quot;w&quot;,[104,144,112,144]],[&quot;w&quot;,[128,144,112,144]],[&quot;s&quot;,[112,192,0],{&quot;color&quot;:&quot;blue&quot;,&quot;offset&quot;:&quot;5&quot;,&quot;plot offset&quot;:&quot;0&quot;,&quot;_json_&quot;:33},[&quot;C&quot;]],[&quot;w&quot;,[104,192,112,192]],[&quot;w&quot;,[128,192,112,192]],[&quot;view&quot;,0,0,2,&quot;5&quot;,&quot;10&quot;,&quot;10MEG&quot;,null,&quot;100&quot;,&quot;4us&quot;]]"
                    />
            </center>
            <answer type="loncapa/python">
# for a schematic response, submission[i] is the json representation
# of the diagram and analysis results for the i-th schematic tag

def get_tran(json,signal):
  for element in json:
    if element[0] == 'transient':
      return element[1].get(signal,[])
  return []

def get_value(at,output):
  for (t,v) in output:
    if at == t: return v
  return None

output = get_tran(submission[0],'Z')
okay = True

# output should be 1, 1, 1, 1, 1, 0, 0, 0
if get_value(0.0000004,output) &lt; 2.7: okay = False;
if get_value(0.0000009,output) &lt; 2.7: okay = False;
if get_value(0.0000014,output) &lt; 2.7: okay = False;
if get_value(0.0000019,output) &lt; 2.7: okay = False;
if get_value(0.0000024,output) &lt; 2.7: okay = False;
if get_value(0.0000029,output) &gt; 0.25: okay = False;
if get_value(0.0000034,output) &gt; 0.25: okay = False;
if get_value(0.0000039,output) &gt; 0.25: okay = False;

correct = ['correct' if okay else 'incorrect']

</answer></schematicresponse>




      </problem>



<problem url_name="cfn_problem">
  <text>
    <script type="text/python" system_path="python_lib">
def test_csv(expect, ans):
   # Take out all spaces in expected answer
   expect = [i.strip(' ') for i in str(expect).split(',')]
   # Take out all spaces in student solution
   ans = [i.strip(' ') for i in str(ans).split(',')]

   def strip_q(x):
      # Strip quotes around strings if students have entered them
      stripped_ans = []
      for item in x:
         if item[0] == "'" and item[-1]=="'":
            item = item.strip("'")
         elif item[0] == '"' and item[-1] == '"':
            item = item.strip('"')
         stripped_ans.append(item)
      return stripped_ans

   return strip_q(expect) == strip_q(ans)
</script>
    <ol class="enumerate">
      <li>
        <pre>
num = 0
while num &lt;= 5:
    print(num)
    num += 1

print("Outside of loop")
print(num)
 </pre>
        <p>
          <customresponse cfn="test_csv" expect="0, 1, 2, 3, 4, 5, 'Outside of loop', 6">
            <textline size="50" correct_answer="0, 1, 2, 3, 4, 5, 'Outside of loop', 6"/>
          </customresponse>
        </p>
      </li>
    </ol>
  </text>
</problem>

<problem url_name="computed_answer">

  <customresponse>
    <textline size="5" correct_answer="Xyzzy"/>
    <answer type="loncapa/python">
if submission[0] == "Xyzzy":
    correct = ['correct']
else:
    correct = ['incorrect']
    </answer>
  </customresponse>

</problem>

    </vertical>
  </chapter>
</course>