An-Hui Engineering University
Python programming test report
Class Logistics 192 Name Chang Yi-ming school number 3190505225 scores
Date 2020.3.22 instructor repair buildings
[Title] Experiment Experiment two sequential Structured Programming (confirmatory test)
【Purpose】
(1) Method of control of input and output data;
(2) structure of the program execution in order familiar statements;
(3) Design of the sequence control structure of the program.
[Experiment Conditions]
PC or remote programming environment
[Experimental] content
1, completed three programming problems. (Python123)
( 1 ) Calculation of the area of a circle calculated S
Problem Description:
The calculated area of a circle radius of the circle, radius 25. Please write and run the following code:
radius = 25 # 25 is the radius of a circle
area = 3.1415 * radius * radius # circular area is calculated according to the formula
print ( "{:. 2f}". format (area)) # outputs only two decimal places the result
input Output:
Input: None Output: 1963.44
( 2 ) sum
Questions Question:
Programming, input from the keyboard two numbers x, y, find x, y and assigned to the sum of s, the final output s.
input Output:
( 3 ) Determine the volume of a sphere
Problem Description:
Enter the radius of the sphere, the sphere volume calculation.
input Output:
Input: A positive number
Output: the volume of the ball, as a result two decimal places
[Experimental recording and analysis]
(Please fill in the experimental records and analysis results)
1. Calculation circular area
Experiments recorded as follows
2. The sum
Experiments recorded as follows:
3. Calculation sphere volume
Experiments recorded as follows
[Questions] (be careful not to leak A)
1, question 1 What influence factors and calculation accuracy of 3 questions? How to make a value of 1 and 3 to get a more accurate? (You can try on the local computer, or self-programmed on python123)
Input values of the factors are related to the circumference, a value of 3.1415, but if the value is more precise, such as: 3.141592, the result is more accurate.