# Mathematica list multiplication question

**URL:** <https://community.wolfram.com/t/mathematica-list-multiplication-question/3811>\
**Category:** Questions\
**Tags:** mathematica\
**Created:** [October 28, 2014, 6:23pm UTC](https://community.wolfram.com/t/mathematica-list-multiplication-question/3811 "2014-10-28T18:23:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![anon\_91240867](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@anon\_91240867](https://community.wolfram.com/u/anon_91240867)\
**Post date:** [October 28, 2014, 6:23pm UTC](https://community.wolfram.com/t/mathematica-list-multiplication-question/3811/1 "2014-10-28T18:23:27Z")

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Range[1, 9, 2]\* Range[3, 11, 2] comes out to be {3, 15, 35, 63, 99} why is it 3,15,35,63,99?

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**Author:** ![danl](https://yyz1.discourse-cdn.com/wolfram/user_avatar/community.wolfram.com/danl/32/41267_2.png) [@danl](https://community.wolfram.com/u/danl)\
**Post date:** [October 28, 2014, 7:02pm UTC](https://community.wolfram.com/t/mathematica-list-multiplication-question/3811/2 "2014-10-28T19:02:07Z")

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Why should it be anything else?

In slightly more detail:

(1) What result are you expecting that is different?

(2) What have you checked in documentation that you are not understanding?

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**Author:** ![brucem](https://yyz1.discourse-cdn.com/wolfram/user_avatar/community.wolfram.com/brucem/32/26319_2.png) [@brucem](https://community.wolfram.com/u/brucem)\
**Post date:** [October 28, 2014, 9:41pm UTC](https://community.wolfram.com/t/mathematica-list-multiplication-question/3811/3 "2014-10-28T21:41:51Z")

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May I suggest a divide and conquer approach?

What does Range[1, 9, 2] do?

What does Range[3, 11, 2] do?

What does “\*” (Times) do when given lists?

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**Author:** ![dreiss](https://yyz1.discourse-cdn.com/wolfram/user_avatar/community.wolfram.com/dreiss/32/29094_2.png) [@dreiss](https://community.wolfram.com/u/dreiss)\
**Post date:** [October 28, 2014, 10:08pm UTC](https://community.wolfram.com/t/mathematica-list-multiplication-question/3811/4 "2014-10-28T22:08:04Z")

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…and if you were trying to compute the dot product, look up Dot in the Documentation Center.