r****o
发帖数: 1950 | 1 等号上面一个三角形，那个三角形是尖朝上的那种。
是不是这个符号表示“定义为”? |
s****g
发帖数: 4 | |
Q******g
发帖数: 607 | 3 in most cases, yes. why don't you check the notation part of the book?
【在 r****o 的大作中提到】
: 等号上面一个三角形，那个三角形是尖朝上的那种。
: 是不是这个符号表示“定义为”?
|
r****o
发帖数: 1950 | 4 checked but didn't find the source definition. :(
【在 Q******g 的大作中提到】
: in most cases, yes. why don't you check the notation part of the book?
|
Q******g
发帖数: 607 | 5 well, then take it as "defination".
somebody used to use threee lines, same as always equal.
i think triangle plus = is better. always equal and defination
are different things.
【在 r****o 的大作中提到】
: checked but didn't find the source definition. :(
|
H****h
发帖数: 1037 | 6 我喜欢用冒号加等号。
【在 Q******g 的大作中提到】
: well, then take it as "defination".
: somebody used to use threee lines, same as always equal.
: i think triangle plus = is better. always equal and defination
: are different things.
|
Q******g
发帖数: 607 | 7 it's easier to type. lots of math software use this notation.
【在 H****h 的大作中提到】
: 我喜欢用冒号加等号。
|
