s*s
2 楼
其实一个数就是单元矩阵，它的倒数就是它的逆，相乘得1。这样不矛盾了吧。
【在 F*****n 的大作中提到】
: 数学上的倒数是不是inverse?
: 矩阵的逆好像也是inverse?
【在 F*****n 的大作中提到】
: 数学上的倒数是不是inverse?
: 矩阵的逆好像也是inverse?
F*n
3 楼
它们都叫inverse?
【在 s**s 的大作中提到】
: 其实一个数就是单元矩阵，它的倒数就是它的逆，相乘得1。这样不矛盾了吧。
【在 s**s 的大作中提到】
: 其实一个数就是单元矩阵，它的倒数就是它的逆，相乘得1。这样不矛盾了吧。
s*s
4 楼
Please refer to wikipedia:
http://en.wikipedia.org/wiki/Inverse_element
"Every real number s has a additive inverse given by -x. Every nonzero real
number x has a multiplicative inverse give by 1/x. By contrast, zero has no
multiplicative inverse."
"A square matrix M with entries in a field K is invertible if and only if
its determinant is different from zero. If the determinant of M is zero, it
is impossible for it to have a one-sided inverse; therefore a eft inverse or
right inverse implies th
【在 F*****n 的大作中提到】
: 它们都叫inverse?
http://en.wikipedia.org/wiki/Inverse_element
"Every real number s has a additive inverse given by -x. Every nonzero real
number x has a multiplicative inverse give by 1/x. By contrast, zero has no
multiplicative inverse."
"A square matrix M with entries in a field K is invertible if and only if
its determinant is different from zero. If the determinant of M is zero, it
is impossible for it to have a one-sided inverse; therefore a eft inverse or
right inverse implies th
【在 F*****n 的大作中提到】
: 它们都叫inverse?
l*g
5 楼
reciprocal something
【在 F*****n 的大作中提到】
: 数学上的倒数是不是inverse?
: 矩阵的逆好像也是inverse?
【在 F*****n 的大作中提到】
: 数学上的倒数是不是inverse?
: 矩阵的逆好像也是inverse?
s*s
6 楼
reciprocal
http://en.wikipedia.org/wiki/Reciprocal_%28mathematics%29
【在 l***g 的大作中提到】
: reciprocal something
http://en.wikipedia.org/wiki/Reciprocal_%28mathematics%29
【在 l***g 的大作中提到】
: reciprocal something
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