Woah! After a break of five years !! Nice to see you again in action!

@rootmath

5 жыл бұрын

Thanks! PhD is finished and it feels good to be back!

@wolframalpha8634

5 жыл бұрын

@@rootmath Hey by the way what's your PhD based on!?

@rootmath

5 жыл бұрын

@Wolf Ram Alpha Mathematics/Data Science applied to epilepsy data (neuroscience)

@wolframalpha8634

5 жыл бұрын

@@rootmath That's awesome! Anyway congrats on getting your PhD and can't wait for you to upload more math videos!

Good to see you back!

@rootmath

5 жыл бұрын

Thanks!

Elite

isnt the denominator for formula 3 meant to be 6?

@rootmath

4 жыл бұрын

Yes, I screwed it up. I might remake this video, thanks for the comment!

@princekumi1185

2 жыл бұрын

Yeah is a mistake sir formula 3 denominator is 6

I'm actually going to take a shot and PRAY that you see this, even if the video is posted 1 year ago. I get the whole concept of sigma notation when the lower limit is 1, but what happens when the lower limit is greater than 1? I'm really hoping you can help me.

@rootmath

3 жыл бұрын

Just subtract the two results.... Sum i=10 to 20 will equal Sum i=1 to 20 minus Sum i=1 to 9 Alittle hard to read without good notation but hopefully you get the idea, if not let me know

@jelatine

3 жыл бұрын

@@rootmath A week update: Thank you for this! Clarified the lesson A LOT. Aced our practice worksheets and exam, so again, thank you!