矢量、矩阵和表格
>
使用数组
> 收缩或展开嵌套矩阵
收缩或展开嵌套矩阵
1.
在工作表中，创建一个包含一个或多个嵌套矩阵的矩阵。
<region id="ID0EJVTGB" top="57.600000000000009" left="57.600000000000009" height="44.2" width="94.733333333333334" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="27"> <define xmlns="http://schemas.mathsoft.com/math50"> <id labels="VARIABLE" xml:space="preserve">M</id> <matrix rows="2" cols="3"> <real>2</real> <real>3</real> <real>2</real> <real>3</real> <real>2</real> <real>3</real> </matrix> </define> </math> </region>
<region id="ID0EWVTGB" top="115.20000000000002" left="57.600000000000009" height="62.800000000000004" width="108.22" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="29"> <define xmlns="http://schemas.mathsoft.com/math50"> <id labels="VARIABLE" xml:space="preserve">N</id> <matrix rows="3" cols="4"> <real>3</real> <real>4</real> <real>4</real> <real>3</real> <real>4</real> <real>4</real> <real>3</real> <real>4</real> <real>4</real> <real>3</real> <real>4</real> <real>4</real> </matrix> </define> </math> </region>
<region id="ID0EEWTGB" top="172.8" left="57.600000000000009" height="25.6" width="112.19333333333334" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="31"> <define xmlns="http://schemas.mathsoft.com/math50"> <id labels="VARIABLE" xml:space="preserve">A</id> <apply> <id labels="FUNCTION" xml:space="preserve" label-is-contextual="true">identity</id> <real>7</real> </apply> </define> </math> </region>
<region id="ID0ERWTGB" top="211.20000000000005" left="57.600000000000009" height="36.800000000000004" width="67.493333333333339" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="33"> <define xmlns="http://schemas.mathsoft.com/math50"> <apply> <indexer /> <id labels="VARIABLE" xml:space="preserve">A</id> <sequence> <real>0</real> <real>3</real> </sequence> </apply> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">M</id> </define> </math> </region>
<region id="ID0E6WTGB" top="268.80000000000007" left="57.600000000000009" height="36.800000000000004" width="65" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="35"> <define xmlns="http://schemas.mathsoft.com/math50"> <apply> <indexer /> <id labels="VARIABLE" xml:space="preserve">A</id> <sequence> <real>4</real> <real>4</real> </sequence> </apply> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">N</id> </define> </math> </region>
<region id="ID0EMXTGB" top="326.40000000000003" left="57.600000000000009" height="36.800000000000004" width="88.683333333333337" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="37"> <define xmlns="http://schemas.mathsoft.com/math50"> <apply> <indexer /> <id labels="VARIABLE" xml:space="preserve">A</id> <sequence> <real>7</real> <real>1</real> </sequence> </apply> <apply> <mult /> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">M</id> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">N</id> </apply> </define> </math> </region>
2.
显示该矩阵。
<region id="ID0E3YTGB" top="441.60000000000008" left="57.600000000000009" height="155.79999999999998" width="262.84" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="39"> <eval xmlns="http://schemas.mathsoft.com/math50"> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">A</id> <unitOverride> <placeholder /> </unitOverride> </eval> </math> </region>
嵌套矩阵将以折叠状态显示出来，显示的位置为这些矩阵所替代的原始矩阵元素的位置。方括号指示每个嵌套矩阵的大小。
3.
要展开嵌套矩阵并查看其元素，请在
矩阵/表格
选项卡的
结果格式
组中，单击
折叠嵌套矩阵
。
<region id="ID0E41TGB" top="672.00000000000011" left="57.600000000000009" height="230.2" width="367.06" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="41"> <eval xmlns="http://schemas.mathsoft.com/math50"> <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">A</id> <unitOverride> <placeholder /> </unitOverride> </eval> <resultFormat> <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="true" /> </resultFormat> </math> </region>
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关于使用数组
要创建嵌套数组
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