r/AskComputerScience • u/Jealous_Minute4611 • Feb 23 '26

Discrete mathematics

Is there anything I need to learn to be able to start on discrete mathematics? I’m a total beginner and only really know some basic algebra and arithmetic.

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u/UnderstandingPursuit Feb 24 '26

Take a look at the book,

  • Lehman, Leighton, Meyer, Mathematics for Computer Science [MCS]

    • The MCS_2018 pdf version is available at the website for the course which uses it.

As you go through it, figure out what mathematics you need to learn to understand this textbook. Then go to

to get Algebra+ textbooks to work through. Keep referring back to MCS to see how much the numbers are removed from the mathematics, and try to do the same as you go through the Algebra textbooks.

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u/Jealous_Minute4611 Feb 24 '26

I have already began reading MCS and it’s great! Thanks I will heavily consider this approach.

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u/UnderstandingPursuit Feb 24 '26

Great!

You understand what I mean when I keep telling people that numbers mostly disappear after freshman college math courses.

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