Involution

See also

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More things to try:

• {{0,-1},{1,0}}.{{1,2},{3,4}}+{{2,-1},{-1,2}}
• d/dx Si(x)^2
• minimal polynomial sqrt(2)+sqrt(3)

Cite this as:

Weisstein, Eric W. "Involution." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Involution.html

Subject classifications