Type this script in PyTutor's editor window: import math def area_of_disk(radius): return math.pi * radius **...
Type this script in PyTutor's editor window:
import math
def area_of_disk(radius):
return math.pi * radius ** 2
area = area_of_disk(5.0)
● What is the name of the frame containing variable area_of_disk?
● What does variable area_of_disk refer to?
● What is the name of the frame containing parameter radius?
● When does the frame appear in the frames pane?
● What is the type and value of the object bound to radius? What caused that object to be bound to radius?
● How does PyTutor depict the value the function will return?
● When does the frame containing radius disappear?
● What is the name of the frame containing variable area?
● When does area appear in the frame?
● What is the type and value of the object bound to area? What caused that object to be bound to area?
Homework Answers
What is the name of the frame containing variable area_of_disk?
Global frame contains area_of_disk
--------------------------------------
What does variable area_of_disk refer to?
area_of_disk refers to the function object
--------------------------------------
What is the name of the frame containing parameter radius?
Global Frame contains parameter radius
--------------------------------------
When does the frame appear in the frames pane?
when the first statement "import math" is executed, math module instance created then first frame appears. "math" is the reference variable refers to that math module instance.
--------------------------------------
What is the type and value of the object bound to radius? What caused that object to be bound to radius?
radius bound to float data type . Value of the radius is 5.0
when the function area_of_disk(5.0) is called,
parameter 5.0 is passed to
the function, in the function definition it is
assigned to radius variable.
--------------------------------------
How does PyTutor depict the value the function will return?
"return " keyword is used to indicate that the
function will
return a value
--------------------------------------
When does the frame containing radius disappear?
when the function return the calculated value, the
radius disappear.
--------------------------------------
What is the name of the frame containing variable area?
Global frame
--------------------------------------
When does area appear in the frame?
After the function return the value, area appears
in the frame.
The return value is assigned to area variable.
--------------------------------------
What is the type and value of the object bound to area? What caused
that object to be bound to area?
area bound to float data type. value of area is
78.5398
when the statement area = area_of_disk(5.0) is
executed , area_of_disk is called with
parameter. Then the function calculates the area and
return the value.
The returned value is assigned to area
variable.
--------------------------------------
SCREENSHOT FOR WHEN FIRST FRAME APPEARS:
SCREENSHOT WHEN area_of_disk() FUNCTION OBJECT IS CREATED:
Add Answer to:
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