How to Convert a Negative Integer in Modular Arithmetic - Cryptography - Lesson 4

In this video, I explain how to convert a negative integer to a congruent integer within a given modulo.

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[JohnSmith-bxgf]

Reading about this craziness for the last hour and only you could explain it clearly.

[plebbo]

Literally seeing everyone else in the same boat as me why aren’t the books as good as teaching this as you
You’re so good!

[souravraychaudhuri]

An easy trick to solve this problem:
1. Ignore the -ve sign on the number (n).
2. Find the remainder(R) when divided by (m). (Just like how the modulo is found for +ve integer)
3. Do m - R (m minus R) to get the final answer for the -ve number (n).

[colinjbanks]

Thank you. Explained very well. The best I’ve seen so far.

[DarkGT]

Thanks Paul, no one teacher can explain it like you. Sadly you didn't make more episodes of Cryptography videos.

[oOnewerOo]

could not find a single video in german that explains it, finally i found u and i unterstand every single word and obviously i also check how to solve it.

[christopherandrewmartin]

This was so helpful for me as I prepare for my upcoming Discrete Mathematics exam! Thank you.

[klabboy]

You should make more of these on cryptography! This is great!

[nicholasbraud]

Thanks man, you took three minutes to explain what my book tries to in 15 pages of uselessness.

[trunkswithnojacket]

Thank you so much for taking your time to make these videos! They are the best resource I have found here on Youtube when it comes to modular arithmetic!

[qlikviewtraining]

You're a great teacher. Reminded of Salman Khan (Khan Academy) .Thank you.

[sayalideo]

Awesome. Please continue adding more tutorials in this playlist. Thanks a lot

[trantrungnghia]

No no no it just took me 15 minutes to get to another level of DM 😮 you are a Saint

[Allegory]

Thank you for all these crystal clear videos!

[jaejoonpark]

thank you so much. i was having hard time with understanding negative modulo arithmetic

[BenjaminWheeler]

Thanks! Needed this for a Discrete Mathematics exam in about an hour.

[c.kreddy]

Sir y r u not uploading videos since 5 years

[shalindeval]

we need more cryptographic videos! please!!

[del]

Thank you so much! This was such an easy, clear video.

[HuanPhanThai]

Thank the teacher so much. The lecture is very easy to understand.