20 lines
292 B
Python
20 lines
292 B
Python
|
"""
|
||
|
|
分段函数求值
|
||
|
3x - 5 (x > 1)
|
||
|
|
f(x) = x + 2 (-1 <= x <= 1)
|
||
|
|
5x + 3 (x < -1)
|
||
|
|
|
||
|
|
Version: 0.1
|
||
|
|
Author: 骆昊
|
||
|
|
Date: 2018-02-28
|
||
|
|
"""
|
||
|
|
|
||
|
|
x = float(input('x = '))
|
||
|
|
if x > 1:
|
||
|
|
y = 3 * x - 5
|
||
|
|
elif x >= -1:
|
||
|
|
y = x + 2
|
||
|
|
else:
|
||
|
|
y = 5 * x + 3
|
||
|
|
print('f(%.2f) = %.2f' % (x, y))
|