Mathematica 9 is now available
内嵌函数 / 列表和矩阵 / 列表运算 /

Delete

Usage

• Delete[expr, n] 用来删除expr中位置 n 的元素.如果 n 是负数，该位置从表达式的末尾计数.
• Delete[expr, i, j, ... ]用来删除位置 i, j, ... 的部分.
• Delete[expr, , , ... , , , ... , ... ] 用来删除多个位置的部分.


Notes

•例如: Delete[ a, b, c, d , 3]LongRightArrow .
• Delete[ a, b, c, d , 1 , 3 ]LongRightArrow .
• 删除一个表达式中特定元素的头等价于在那个位置把FlattenAt应用到该表达式.
• 例如： Delete[ a, b , c , 2, 0 ]LongRightArrow .
•删除整个表达式的头部会使该头部成为序列. • 例如: Delete[ a, b , 0]LongRightArrow .
•参见Mathematica 全书:1.8.6节.
•同时参见: Insert, MapAt, ReplacePart, FlattenAt, DeleteCases, Drop, StringDrop.
Further Examples

This deletes the third element from the list.

In[1]:=  

Out[1]=



Any questions about topics on this page? Click here to get an individual response.Buy NowMore Information
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.