FlattenAt
FlattenAt
范例
打开所有单元 关闭所有单元基本范例 (2)
范围 (3)
不仅是列表，FlattenAt 还可以拼接任何表达式的参数：
FlattenAt[f[g[1, 2], g[3, 4], g[5]], {2}]mat = Array[a, {2, 2}]Flatten the first element (row) of the matrix:
FlattenAt[mat, 1]FlattenAt[mat, {1}]Flatten at position 1,2 (the element in the first row, second column):
FlattenAt[mat, {1, 2}]Flatten at positions 1 and 2 (the rows) of the matrix:
FlattenAt[mat, {{1}, {2}}]Create an operator form of FlattenAt:
op = FlattenAt[1]Apply the operator to different expressions:
op[{{1, 2}, {3, 4}}]op[{f[1, 2], g[3, 4]}]属性和关系 (2)
对列表而言，FlattenAt[list,pos] 等价于 MapAt[Splice,list,pos]：
FlattenAt[{a, {b, {c}}, d, {e}}, {{2, 2}, {4}}]MapAt[Splice, {a, {b, {c}}, d, {e}}, {{2, 2}, {4}}]对于一般表达式而言，FlattenAt[expr,pos] 等价于 MapAt[Delete[0],expr,pos]：
FlattenAt[f[a, g[b, c], d, {e}], {{2}, {4}}]MapAt[Delete[0], f[a, g[b, c], d, {e}], {{2}, {4}}]
Wolfram Research (1991)，FlattenAt，Wolfram 语言函数，https://reference.wolfram.com/language/ref/FlattenAt.html.
文本
Wolfram Research (1991)，FlattenAt，Wolfram 语言函数，https://reference.wolfram.com/language/ref/FlattenAt.html.
CMS
Wolfram 语言. 1991. "FlattenAt." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/FlattenAt.html.
APA
Wolfram 语言. (1991). FlattenAt. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/FlattenAt.html 年