- SYSTEMS OF EQUATIONS » the graphing method + no solution & infinitely many solutions | Math Hacks
- Troy math teacher uses old school techniques to put learning in the hands of the students

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- SYSTEMS OF EQUATIONS » the graphing method + no solution & infinitely many solutions | Math Hacks
- Troy math teacher uses old school techniques to put learning in the hands of the students

this makes my day ….

awesome

Fantastic instruction, cameraman is a little zoom-happy though… The resolution of the video is plenty good, no need for close-ups. I'd rather see more of the board at a time.

Had the chance of having this teacher for Cal 3 at McGill =) He's awesome, he definetly likes teaching. He'd prepare a engineering-related joke every Friday class =) and he dressed up as an integral for Halloween! Thumbs up David!

Perfect…

I understood it perfectly…

this is perfect and just in time for my calc ap exams!

His pauses are funny.

It works! Thank you 😀

Great lecture!

good job thank you!

Finally I Got it !! .. Thanks from middle east

u helped alot on my Final Applied math exam

thank u soo much bro

can u plzz add modified eulers method

I don't necessarily agree with this teaching method. There are too many steps listed when really all that is needed to find this solution is knowing that stepsize*(slope at Po)=y' and y value at P1 = (y value at Po)+ y'

No fair: the guy wrote the question on the blackboard before the video started. This means he has a tendency to do ten minutes' work in just ten minutes, rather than the usual 43:17.

You're supposed to write on the board while we watch you do it on the Intenet. Doing it beforehand is cheating. No fair.

Also he forgot the Standard Behavior for YouTube instructors, blathering on for ten minutes and then saying "Now let's get started."

What's the matter with this guy? Tell him to get with the program, OK?

-dlj.

For part b, you only checked concavity at one point, but assumed it to be concave down until x=1/2. If it changed concavity before then, you could arrive at the wrong conclusion.

Hi there. I calculated 5 steps using Euler’s method for the differential equation of this video. I used Excel to perform the calculations. I got the following results:

n xn yn fn=f(xn,yn)

0 0 -1 1

1 0.5 -0.5 0.5

2 1 -0.25 0.3125

3 1.5 -0.09375 0.149414063

4 2 -0.019042969 0.038448572

5 2.5 0.000181317 -0.00045326

I hope this information was useful for you. I am a graduate student of specialization in electric power systems at Central University of Venezuela in Caracas, best regards from Venezuela.

this guy is yoked

Great vid thanks. Inspired me to make this, https://shanegibney.github.io/Euler-First-Order-ODE-s/

this is exactly what I was looking for, thanks!

and for a second order ODE? help me plz 🙂

hi please can you ansewer this qst i am stucking on it "find optimal step h for euler method

"

This is super helpful! This is almost exactly how my professor does it and I was so lost when it came to Euler but now it makes so much sense! THANK YOU!

This was super helpful thank you

why does he stop at y = -0.25 and says that this is the solution that we're looking for?