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is there an informative interpretation to why $$\arctan(e)\approx e-\frac $$ they differ by $ \times ^{ }$. trigonometry approximation constants asked dec ' at : tyobrien silver badges bronze badges votes answers views what are some large or small mathematical constants?...
vectors $\{v_i\}$ in a basis of $v$ . any vector in $v$ is a linear combination of the vectors $\{v_i\}$ in a basis of $v$ . this means that $ orall u \in v$ we have :$u=u_ v_ +u_ v_ +\cdots + u_nv_n$ i am reading upon a fact about ... linear-algebra linear-transformations asked hours ago xyz bronze badges...
the difference between a tensor and a matrix is a subtle but important and well discussed point. in the context of a vector space $v$ over a field $f$ (and its dual $v^*$), briefly put, a $(p, q)$-... matrices terminology definition tensors asked dec ' at : jnez silver badges bronze badges votes answers...
from rosen's discrete mathematics and its applications, ed, chapter p. - : it seems to me that both of them are talking about partitioning a set of n ... combinatorics discrete-mathematics combinations set-partition asked feb at : j. doe bronze badges votes answer views notation for partitions of sets...