User:Thebigh/mysandbox: Difference between revisions
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* Verify that {{math|?<sup>-1</sup>(-5/9)}} = (√13 - 7)/6
* Verify that the two functions are inverses of each other by showing that {{math|?<sup>-1</sup>(?(x))}}={{math|x}} and {{math|?(?<sup>-1</sup>(y))}}={{math|y}} for {{math|x, y}} of your choice
Don't worry about precision error in the last few digits.
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print minkowski(minkowski_inv(0.718281828)), minkowski_inv(minkowski(0.1213141516171819))
</lang>
{{out}}
<pre> 1.666666666669698 1.666666666666667
-0.5657414540893351 -0.5657414540893352
0.7182818280000092 0.1213141516171819</pre>
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