VERY EASY!1!1!

This actually is a pretty easy equation.
The large "E" looking symbol is Sigma, which represents a sum. You repeat the expression attached to the sum and then add one to your counter until you reach an end point. This particular sum says:
1. k = 1, which means "start the counter at 1."
2. n is above the symbol, which means "end when the counter equals n."
3. 1/k, which means "divide 1 by the current counter and add it to your sum."
4. - ln n, which means "after you calculate the sum, subtract the ending number's natural logarithm."
5. lim n-> infinity, which means "repeat this process forever."

Technically, it is of course impossible to truly repeat this forever, but as you increase the size of n (the ending value for your counter), the sum gets closer and closer to a particular number. In this case, the number is the Euler-Mascheroni constant.
Congratulations, you just read the explanation of a fairly basic calculus formula!

same

same

Finnaly, now I know what are the things above and under sigma. Thanks alot !

You're welcome! And if that sigma were a capital pi, then it would go from a sum to a product, which follows all the same rules, but multiplies each iteration rather than adding it.

Thanks for the explanation. I saw this problem and I was honestly gonna solve it out of curiosity but you saved me the work.

No problem!

For those of you still confused, this is a visual representation.
The red sloped area represents the area under the curve, or integral, of the equation y=1/x from 1 to infinity.
The purple bars represent the integral of the "floor" version of the same function in the same bounds. Each bar has a width of 1 and a height of 1/floor(x), meaning that if its width is between 1 and 2, its height is 1/1=1, and if it's between 2 and 3, its height is 1/2, and so on, from 1 all the way to infinity.
γ (the lower-case form of the Greek letter Gamma) represents the "Euler-Mascheroni constant" mentioned in the original comment, and it's equal to the area of the purple bars minus the integral of the red slope. Once again, it's not possible to get an exact value of it, but it's possible to estimate it as being equal to approximately 0.577.
If you want to see it for yourself in terms of the equation in OP's meme, take a look at this graph at https://www.desmos.com/calculator/hkipf0g4rd
Zoom out super far, then drag your mouse/finger across the line towards the right. You'll see that the y-value will get increasingly close to 0.577.

https://i.imgflip.com/7dfryj.jpg

Sure
I don't know that but I'll act like that wierd E is a radical so I can make use of my life

Probability and statistics is important in life.

that's the epsilon I think so

I would love to know how to do this equation!

the answer is that first math character = Ln 2

I like how ICEU just looked up hardest math problems and got a random image

fr bro

And then at the deadline day, they don't even ask for the homework.

This will definitely prepare me for 9th grade

LOL

Oh, come now. Probability and statistic equations aren't that hard.

Being totally serious, the Sum (aka sideways M) is actually SUPER easy :P I did it last year, and I zoomed through the entire term XD

Why tho

lol

It's a Euler-Mascheroni constant equation used in calculating probabilities.

My brain cells hurt

1 eh...

Is 7th grade math easy for you

hes in 9th grade

I'm in 7th grade
Is this what 9th grade will be like

No this is the 11th grade. In Australia, we have ATAR which determines how you'll get to University. This equation is in the second highest maths or maths methods. I don't know the equivalent in other countries

This is all Calculus. Usually 11th or 12th Grade Math.

lol

When my cousin told me that she was struggling with algebra, I told her that next class she ought declare: 'X + Y = Z: the end of the alphabet--Class over!' Gotta find out if she tried that trick. LOL

I recently learned tounderstand sigma so this is very satisfying

Send this to your math teacher.
-20 = -20
16-36 = 20-45
16-36+(81/4) = 20-45+(81/4)
4^2-2x4x(9/2)+(9/2)^2 = 5^2-2x5x(9/2)+(9/2)^2
(4-9/2)^2 = (5-9/2)^2
4-9/2 = 5-9/2
4=5

16-36 ≠ 20-45

*25-45

(4-9/2)^2 = (5-9/2)^2
Does not imply
4-9/2 = 5-9/2

It's like saying 0.5²=(-0.5)² so 0.5=-0.5 which is wrong.

If you can say 4=5, maybe you can also make something that implies 0.5 =-0.5🤔

ik