# Advice on math studies

**URL:** <https://forum.gcaptain.com/t/advice-on-math-studies/48682>\
**Category:** Professional Mariner Forum\
**Created:** [July 19, 2018, 5:08pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682 "2018-07-19T17:08:01Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Bonefish01](https://avatars.discourse-cdn.com/v4/letter/b/34f0e0/32.png) [@Bonefish01](https://forum.gcaptain.com/u/Bonefish01)\
**Post date:** [July 19, 2018, 5:08pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/1 "2018-07-19T17:08:01Z")

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Please pardon this dumb question. I am looking for advice on what Math Skills, (Geometry / Calculus / Algebra / Trigonometry), I should brush up on in preparation for my Upgrade Test for 1600T Master Oceans. I plan to start brushing up with those “DUMMY” books to get familiar with concept before I try to tackle the C.G. problems.

Thanks for any responses,  
Ralph

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**Author:** ![tugsailor](https://avatars.discourse-cdn.com/v4/letter/t/a9adbd/32.png) [@tugsailor](https://forum.gcaptain.com/u/tugsailor)\
**Post date:** [July 19, 2018, 5:37pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/2 "2018-07-19T17:37:37Z")

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Basic algebra and trig are all you need. No calc.

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**Author:** ![saltyseamen](https://avatars.discourse-cdn.com/v4/letter/s/e47c2d/32.png) [@saltyseamen](https://forum.gcaptain.com/u/saltyseamen)\
**Post date:** [July 19, 2018, 5:38pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/3 "2018-07-19T17:38:10Z")

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Ralph,  
[https://www.khanacademy.org/](https://www.khanacademy.org/)

It’s FREE

Also, you can skip most of the math by just using the tables in Bowditch II.

Good Luck!

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**Author:** ![Bonefish01](https://avatars.discourse-cdn.com/v4/letter/b/34f0e0/32.png) [@Bonefish01](https://forum.gcaptain.com/u/Bonefish01)\
**Post date:** [July 19, 2018, 6:33pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/4 "2018-07-19T18:33:33Z")

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Thank you

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**Author:** ![Bonefish01](https://avatars.discourse-cdn.com/v4/letter/b/34f0e0/32.png) [@Bonefish01](https://forum.gcaptain.com/u/Bonefish01)\
**Post date:** [July 19, 2018, 6:40pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/5 "2018-07-19T18:40:33Z")

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Many thanks!

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**Author:** ![Emrobu](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/emrobu/32/6696_2.png) [@Emrobu](https://forum.gcaptain.com/u/Emrobu)\
**Post date:** [July 19, 2018, 9:28pm UTC](https://forum.gcaptain.com/t/advice-on-math-studies/48682/6 "2018-07-19T21:28:08Z")

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x2 on Khan Academy, if you want modern conventional trig. Its very good pedagogy, even if modern conventional trig is not the best way to think about triangles. [Dr. Wildberger](https://www.youtube.com/user/njwildberger/featured) knows the ancient secrets and why they are better. And he has an elementary math series on there, too.

I watch him, and I get this deep feeling of “oh! I get it!” which is such a good feeling, and then he looks at the camera with an expression that says, “I know, you totally get it, and its beautiful.” And then after that, my feelings are so inappropriate. 🤭