gs gs109 Python Modules - Python Math - Quiz No.2
gs gs109 Python Quiz
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Question 1: What does the function math.frexp(x) return?
a tuple containing the mantissa and the exponent of x
a list containing the mantissa and the exponent of x
a tuple containing the mantissa of x
a list containing the exponent of x
Question 2: What is the result of math.fsum([.1 for i in range(20)])?
2.0
20
2
2.0000000000000004
Question 3: What is the result of sum([.1 for i in range(20)])?
2.0
20
2
2.0000000000000004
Question 4: What is returned by math.isfinite(float(‘inf’))?
True
False
None
error
Question 5: What is returned by math.isfinite(float(‘nan’))?
True
False
None
error
Question 6: What is x if x = math.isfinite(float(‘0.0’))?
True
False
None
error
Question 8: What will be the output of the following Python code?
print(math.isinf(float('-inf')))
error, the minus sign shouldn’t have been inside the brackets
error, there is no function called isinf
True
False
Question 9: What is the value of x if x = math.ldexp(0.5, 1)?
1
2.0
0.5
none of the mentioned
Question 10: What is returned by math.modf(1.0)?
(0.0, 1.0)
(1.0, 0.0)
(0.5, 1)
(0.5, 1.0)
