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float-ieee-binary: Square root is neither chopped nor correctly rounded. #42

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ikysil opened this issue Sep 27, 2017 · 0 comments
Open

float-ieee-binary: Square root is neither chopped nor correctly rounded. #42

ikysil opened this issue Sep 27, 2017 · 0 comments

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@ikysil
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ikysil commented Sep 27, 2017 

Running test of square root(x).
Testing if sqrt(X * X) == X for 20 Integers X.
Test for sqrt monotonicity.
sqrt has passed a test for Monotonicity.
Testing whether sqrt is rounded or chopped.
Square root is neither chopped nor correctly rounded.
Observed errors run from -6.049382720070228842E-1 to 5.000000000000000000E-1  ulps.
ikysil added a commit that referenced this issue Sep 27, 2017
@ikysil
Improve precision of FSQRT - #42
9d8f991 
Test output after the change:

Running test of square root(x).
Testing if sqrt(X * X) == X for 20 Integers X.
Test for sqrt monotonicity.
sqrt has passed a test for Monotonicity.
Testing whether sqrt is rounded or chopped.
Square root is neither chopped nor correctly rounded.
Observed errors run from 0.E0 to 5.000000000000000000E-1  ulps.
ikysil added a commit that referenced this issue Sep 27, 2017
@ikysil
Simplify FSQRT-NEWTON - #42
80dce31
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@ikysil