Wednesday 6 March 2024

Where math doesn’t work in Python

 


1. Precision Issues:

x = 1.0

y = 1e-16

result = x + y

print(result)  

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1.0

2. Comparing Floating-Point Numbers:

a = 0.1 + 0.2

b = 0.3

print(a == b)  

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False

3. NaN (Not a Number) and Inf (Infinity):

result = float('inf') / float('inf')

print(result) 

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nan

4. Large Integers:

result = 2 ** 1000  

print(result)

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10715086071862673209484250490600018105614048117055336074437503883703510511249361224931983788156958581275946729175531468251871452856923140435984577574698574803934567774824230985421074605062371141877954182153046474983581941267398767559165543946077062914571196477686542167660429831652624386837205668069376

5. Round-off Errors:

result = 0.1 + 0.2 - 0.3

print(result)  

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5.551115123125783e-17

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