linalg1p
http://www.math.kobe-u.ac.jp/OCD/linalg1p.tfb
2003-07-30
experimental
2002-07-30
1
0
arith1
linalg1
linalg4
linalg5
relation1
set1
This CD defines symbols for linear algebra used for hypergeon1
(hypergeometric series of n variables).
plus_part
The argument is a vector. It replaces negative elements in the vector
to zero.
minus_part
The argument is a vector. It replaces positive elements in the vector
to zero and negative elements to their absolute values.
$u = u_{+} - u_{-}$
ones
It returns a vector of a specifed size of which elements are one.
1-ary function.
for all $i$, ${\vec 1}[i] = 1$
kernel
It returns the kernel of the map defined by a matrix in a specified
domain.
$\{ x \in D | A x = 0 \}$
1
arith1.times is relavant for the matrix multiplication?