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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2071 | zjchen | 1 | !! +var+ +exec+ +string+ |
| 11219 | bpr | 2 | tit:product |
| 3 | type:$type_both |
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| 4 | alias:!prod, !multiply |
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| 5 | syntax:!product `fn' for `v'=`v1' to `v2' [step `st']\ |
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| 6 | $ !product `fn' for `v' in `v1,v2,v3,...' |
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| 7 | mean:计算变量 `v' 逐个被 `v1' 到 `v2' 的值替换后函数 `fn(v)' 的乘积. <p>\ |
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| 8 | 在第二句里, 替换的值是表 `v1,v2,...' 里的各项. |