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| Rev | Author | Line No. | Line |
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| 3263 | bpr | 1 | :Data and list manipulation |
| 2 | : |
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| 3 | :items |
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| 4 | items(a,b,c,d,e,f) |
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| 5 | the number of items (here it's 6) in the list {a,b,c,d,e,f} |
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| 6 | :item |
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| 7 | item(3,a,b,c,d,e,f) |
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| 8 | item number 3 of the list {a,b,c,d,e,f} (hence c) |
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| 9 | :item |
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| 10 | item(3,\ll) |
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| 11 | item number 3 of the list \ll (same as <tt>\ll[3]</tt>) |
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| 12 | :item |
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| 13 | item(2..5,a,b,c,d,e,f) |
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| 14 | items number 2 to 5 of the list {a,b,c,d,e,f} (hence b,c,d,e) |
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| 15 | :item |
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| 16 | item([2,4],\ll) |
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| 17 | items number 2 and 4 of the list \ll (same as <tt>\ll[2,4]</tt>) |
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| 18 | :position |
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| 19 | position(make,do,go,make,take) |
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| 20 | number of position of the item `make' in the list |
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| 21 | {do,go,make,take} (hence 3) |
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| 22 | :rows |
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| 23 | rows(\m) |
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| 24 | the number of rows in the matrix \m |
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| 25 | :row |
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| 26 | row(2,\m) |
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| 27 | row number 2 of the matrix \m (same as <tt>\m[2;]</tt>) |
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| 28 | :row |
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| 29 | row(2..5,\m) |
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| 30 | the submatrix of \m consisting of rows number 2 to 5 (same as <tt>\m[2..5;]</tt>) |
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| 31 | :row |
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| 32 | row([1,3],1,2,3<br>3,4,5<br>5,6,7) </td><td>the submatrix of the 3×3 matrix consisting of the first and the last rows |
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| 33 | :row |
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| 34 | row(column 1 > 1 and column 2 = good,\mat) |
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| 35 | the submatrix of \mat consisting of rows where column 1 is > 1 and column 2 is the word `good' |
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| 36 | :randomitem |
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| 37 | randomitem(\list) |
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| 38 | a random item of (comma-separated) \list. |
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| 39 | :randomrow |
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| 40 | randomrow(\mat) |
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| 41 | a random row of the matrix \mat. |
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| 42 | :column |
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| 43 | column(2,\m) |
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| 44 | items of column number 2 of the matrix \m, as a comma-separated list (same as <tt>\m[;2]</tt>) |
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| 45 | :column |
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| 46 | column(2..5,\m) |
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| 47 | the submatrix of \m consisting of columns number 2 to 5 (same as <tt>\m[;2..5]</tt>) |
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| 48 | :column |
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| 49 | column([1,3],1,2,3<br>3,4,5<br>5,6,7) |
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| 50 | the submatrix of the 3×3 matrix consisting of the first and the last columns |
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| 51 | :asis |
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| 52 | asis(How do you do? item(1,2,3)) |
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| 53 | the string as it is, protected from transformations and conditionality. |
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| 54 | :htmlmath |
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| 55 | htmlmath(2*x^2+3*x) |
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| 56 | the best possible way to render the expressionin html way: 2x<sup>2</sup>+3x |
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| 57 | :texmath |
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| 58 | texmath(2*x^2+3*x) |
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| 59 | the TeX source of the expression |