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Python 3.7.6 (default, Jan 30 2020, 09:44:41)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.11.1 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import math
In [2]: s = math.sqrt(10)
In [3]: s * s
Out[3]: 10.000000000000002
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In [4]: s * s == 10
Out[4]: False
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CL-USER> (= (* (sqrt 10) (sqrt 10)) 10)
T
CL-USER> (= (* (sqrt 20) (sqrt 20)) 20)
T
CL-USER> (= (* (sqrt 25) (sqrt 25)) 25)
T
CL-USER> (* (sqrt 25) (sqrt 25))
25.0
CL-USER> (* (sqrt 2532) (sqrt 2532))
2531.9998
CL-USER> (= (* (sqrt 2532) (sqrt 2532)) 2532)
NIL
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CL-USER> (= (* (sqrt 10) (sqrt 10)) 10)почему?
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