98 lines
5.4 KiB
XML
98 lines
5.4 KiB
XML
<course>
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<chapter url_name="EmbeddedPythonChapter">
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<vertical url_name="Homework1">
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<problem url_name="schematic_problem">
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<schematicresponse>
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<center>
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<schematic height="500" width="600" parts="g,n,s" analyses="dc,tran"
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submit_analyses="{"tran":[["Z",0.0000004,0.0000009,0.0000014,0.0000019,0.0000024,0.0000029,0.0000034,0.000039]]}"
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initial_value="[["w",[112,96,128,96]],["w",[256,96,240,96]],["w",[192,96,240,96]],["s",[240,96,0],{"color":"cyan","offset":"","plot offset":"0","_json_":3},["Z"]],["w",[32,224,192,224]],["w",[96,48,192,48]],["L",[256,96,3],{"label":"Z","_json_":6},["Z"]],["r",[192,48,0],{"name":"Rpullup","r":"10K","_json_":7},["1","Z"]],["w",[32,144,32,192]],["w",[32,224,32,192]],["w",[48,192,32,192]],["w",[32,96,32,144]],["w",[48,144,32,144]],["w",[32,48,32,96]],["w",[48,96,32,96]],["w",[32,48,48,48]],["g",[32,224,0],{"_json_":16},["0"]],["v",[96,192,1],{"name":"VC","value":"square(3,0,250K)","_json_":17},["C","0"]],["v",[96,144,1],{"name":"VB","value":"square(3,0,500K)","_json_":18},["B","0"]],["v",[96,96,1],{"name":"VA","value":"square(3,0,1000K)","_json_":19},["A","0"]],["v",[96,48,1],{"name":"Vpwr","value":"dc(3)","_json_":20},["1","0"]],["L",[96,96,2],{"label":"A","_json_":21},["A"]],["w",[96,96,104,96]],["L",[96,144,2],{"label":"B","_json_":23},["B"]],["w",[96,144,104,144]],["L",[96,192,2],{"label":"C","_json_":25},["C"]],["w",[96,192,104,192]],["w",[192,96,192,112]],["s",[112,96,0],{"color":"red","offset":"15","plot offset":"0","_json_":28},["A"]],["w",[104,96,112,96]],["s",[112,144,0],{"color":"green","offset":"10","plot offset":"0","_json_":30},["B"]],["w",[104,144,112,144]],["w",[128,144,112,144]],["s",[112,192,0],{"color":"blue","offset":"5","plot offset":"0","_json_":33},["C"]],["w",[104,192,112,192]],["w",[128,192,112,192]],["view",0,0,2,"5","10","10MEG",null,"100","4us"]]"
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/>
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</center>
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<answer type="loncapa/python">
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# for a schematic response, submission[i] is the json representation
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# of the diagram and analysis results for the i-th schematic tag
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def get_tran(json,signal):
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for element in json:
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if element[0] == 'transient':
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return element[1].get(signal,[])
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return []
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def get_value(at,output):
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for (t,v) in output:
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if at == t: return v
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return None
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output = get_tran(submission[0],'Z')
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okay = True
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# output should be 1, 1, 1, 1, 1, 0, 0, 0
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if get_value(0.0000004,output) < 2.7: okay = False;
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if get_value(0.0000009,output) < 2.7: okay = False;
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if get_value(0.0000014,output) < 2.7: okay = False;
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if get_value(0.0000019,output) < 2.7: okay = False;
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if get_value(0.0000024,output) < 2.7: okay = False;
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if get_value(0.0000029,output) > 0.25: okay = False;
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if get_value(0.0000034,output) > 0.25: okay = False;
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if get_value(0.0000039,output) > 0.25: okay = False;
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correct = ['correct' if okay else 'incorrect']
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</answer></schematicresponse>
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</problem>
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<problem url_name="cfn_problem">
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<text>
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<script type="text/python" system_path="python_lib">
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def test_csv(expect, ans):
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# Take out all spaces in expected answer
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expect = [i.strip(' ') for i in str(expect).split(',')]
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# Take out all spaces in student solution
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ans = [i.strip(' ') for i in str(ans).split(',')]
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def strip_q(x):
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# Strip quotes around strings if students have entered them
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stripped_ans = []
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for item in x:
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if item[0] == "'" and item[-1]=="'":
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item = item.strip("'")
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elif item[0] == '"' and item[-1] == '"':
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item = item.strip('"')
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stripped_ans.append(item)
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return stripped_ans
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return strip_q(expect) == strip_q(ans)
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</script>
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<ol class="enumerate">
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<li>
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<pre>
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num = 0
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while num <= 5:
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print(num)
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num += 1
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print("Outside of loop")
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print(num)
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</pre>
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<p>
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<customresponse cfn="test_csv" expect="0, 1, 2, 3, 4, 5, 'Outside of loop', 6">
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<textline size="50" correct_answer="0, 1, 2, 3, 4, 5, 'Outside of loop', 6"/>
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</customresponse>
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</p>
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</li>
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</ol>
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</text>
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</problem>
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</vertical>
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</chapter>
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</course>
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