That seems complicated.
Average is (100+1)÷2= 50.5
50.5 average x 100 numbers = 5050.
this post was submitted on 11 Dec 2023
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I always thought like that:
Hmmm: 1 + 2 + 3 + ... + 99 + 100
Kommutativgesetz be like:
This equals:
100 +1 +
99 + 2
+98 + 3
.
.
.
And this equals:
101+
101+
101+
.
.
.
How often do I need to do this? I use up 2 numbers for each 101. I have 100 numbers total. So that's 50x101.
Now you can think about: What if it's 1000 instead of 100? But it#s easy from here...
This is why I never succeeded at math. Like why does this shit work?? How can people just take a problem and be like, nah I'm going to just throw numbers all over the place and reassemble them in all sorts of ways and get an answer somehow...
I can't just memorize arbitrary nonsense that "just is" I need to know how it works or it never sticks and all the math I've ever been taught was just "memorize this arbitrary nonsense and regurgitate a specific formula for a specific application that we've spent 0 time explaining other than telling you to memorize it. You want proofs and you can't get proofs until advanced college courses" well guess I'll just never understand mathematical manipulation then...
I feel like 50/50 school failed me and I failed at math.
Once you have the idea, seeing that it works if often easy. But coming up with ideas like that can be really hard, which is why gauss was the only one in his class who got it. There is no general method, you just have to think about stuff for a while, but you can get better with practice. And it feels really good when you prove something for yourself, even if it's relatively straightforward. You can just try to prove some simple things yourself, if you want, the advanced college courses are just for proving really advanced stuff.
Can also be called a programmer move
Not a good one.
Better than a regular grammer move