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  • Clearly equality (\in[Pythagora]) holds for $a,b \in {\Bbb R}^n$ $(\cdot|\cdot)$ on ${\Bbb R}^n$ is defined to be
    2 KB (340 words) - 11:10, 14 September 2023
  • ...{\cal S}({\Bbb R}^n)$ is the space of Schwartz functions, and ${\cal S}'({\Bbb R}^n)$ is its dual.
    2 KB (325 words) - 17:24, 8 June 2020
  • for $a,b\in {\Bbb C}$. Also, ...ver we have $ab = ba$ for $b,a \in {\Bbb A}$. This is not the case when ${\Bbb A}$ is the ring of the matrices.
    4 KB (600 words) - 16:05, 8 June 2020
  • \newdimen\BBB \BBB=\AAA BBB is \the\BBB
    8 KB (978 words) - 15:05, 6 February 2021
  • AAA \DotText{BBB} CCC \DotText{DDD}
    14 KB (1,673 words) - 19:02, 1 May 2024