This topic created in 4456 days ago, the information mentioned may be changed or developed.
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KDr2 Apr 15, 2014  1
product, prod
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wenLiangcan OP @KDr2 这只是 积 而已啊，没有体现出所有 =。=
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764664 Apr 15, 2014 1
@wenLiangcan
sum: the total amount resulting from the addition of two or more numbers, amounts, or items: the sum of two prime numbers 一样 |
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yujnln Apr 15, 2014 1
总和（∑）
连乘（∏）pai ? |
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wenLiangcan OP @764664 是所有数值相乘之积 也是 sum 的意思吗？看不太懂。。。。这是一句话还是从 or items 是另一句？。。。
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wenLiangcan OP @yujnln 有意思，可是虽然用了那个符号，总不能就叫 pi 吧？。。。
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KDr2 Apr 15, 2014
@wenLiangcan 这还什么所有不所有，sum 是 “和” 就体现出所有了？ sum(args...), prod(args...), sum of 2 numbers, 100 numbers, product of 10000 numbers, product of a sequence...
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wenLiangcan OP @KDr2 (￣▽￣")好像是这么回事。。。脑抽了。。
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tywtyw2002 Apr 16, 2014 via iPhone
sum of product 先乘起来再加
ptoduct of sum 先加在乘 |
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