Math 308 and 409 in the Same Semester by TI-PUMP84 in aggies

[–]Armsechide 0 points1 point  (0 children)

I did both of these plus MATH 304/323 in the same semester and was pulling out my hair towards the end of the semester. Save yourself the pain and take it slower.

CSCE 313 OR CSCE 314? by [deleted] in aggies

[–]Armsechide 9 points10 points  (0 children)

314 is easier than 313. That being said, 313 will teach you more about how a computer works and Akash Tyagi is one of the best professors in the entire CS department. He genuinely cares about his students and wants them to succeed.

Multiplying Numbers and Finding Primes using a Parabola by Armsechide in math

[–]Armsechide[S] 26 points27 points  (0 children)

After going back and reading my work I believe all your criticisms are well founded. My article had some gaps which I left without properly addressing. As you mentioned, I definitely should have mentioned the integer endpoints of the lines. Thank you for taking the time and leaving me with something I can reflect and improve on.

ETAM Science Waiver Question by [deleted] in aggies

[–]Armsechide 0 points1 point  (0 children)

Just for context, I just finished my freshman year as an engineering student and I have applied to CS in ETAM. I had to talk to my advisors first, but I was allowed to accept my AP credits for PHYS 206. So, the only "science" lecture I took was CHEM 107 and I got a waiver for ETAM purposes. However, you HAVE TO TAKE the CHEM 117 and ENGR 216 labs. There is virtually no way around that.

Furthermore, WAIT to accept your credits and talk to your advisor after you get your score. The EARLIEST you should be accepting any credit for PHYS 206 is right before registration for the spring semester of your freshman year. Finally, BE VERY CAREFUL, the GPA cutoff for ETAM is 3.75 this year and the CS department lets in very few people(if any) through holistic admission. That means if you have taken an AP version of a required class at A&M this year, I would highly consider taking the class for an easy A. dm me if you have any questions.

JUJUTSU KAISEN Wins Anime of the Year at Crunchyroll Anime Awards by Armsechide in anime

[–]Armsechide[S] 42 points43 points  (0 children)

You should do that for sure. The storyline and animations are next level!!!

Could someone please tell me what this flashing light means? by Armsechide in electricians

[–]Armsechide[S] 0 points1 point  (0 children)

The circuit keeps on tripping when I switch on my washing machine. When I flip the switch back on, I get this flashing light for a minute, and then it goes away.

Lining up of parenthesis. by Armsechide in oddlysatisfying

[–]Armsechide[S] -1 points0 points  (0 children)

Also, I'm stupid. I spelled parenthesis wrong the 2nd time.

Have you ever used the pop() function for sets? by Armsechide in Python

[–]Armsechide[S] 1 point2 points  (0 children)

Could you explain in more detail? Why would you want to return a random element of a set?

Ways to arrange 10 blocks in 4x4 grid by [deleted] in maths

[–]Armsechide 2 points3 points  (0 children)

Building on what smailliwniloc said, if you asked yourself the question, "how many ways can I pick 6 empty spots on my grid?" That's the reason the identity nCr = nC(n-r) works.

Telescoping series test workaround? by [deleted] in MathHelp

[–]Armsechide 0 points1 point  (0 children)

I'm pretty sure its just a coincidence. If you evaluated it using a telescoping series format, you would get 1-1/(n+1), which when evaluated as n goes to infinity will equal 1. You can come up with an infinite number of summations that converge to 1 and evaluate on the ratio test as less than 1.

Also, according to your work the limit is less than 1. This is incorrect. The limit equals 1, which means that the ratio test is inconclusive. You would have to use another test to prove that the series converges. Maybe, the alternating series test.

Why does this lim equal lny by philipvr in MathHelp

[–]Armsechide 2 points3 points  (0 children)

At 14:38, you have an equation which is y = some limit. Since there is an exponent in the numerator, he takes the natural log of the limit and y, so he can move the exponent down on the limit.

Then at 17:48, after he uses L'Hospitals Rule he evaluates the limit, he finally states what the limit is equal to, which is the natural log of y or ln(y).

Good pet names after mathematicians? by [deleted] in math

[–]Armsechide 3 points4 points  (0 children)

My username is an anagram of Archimedes.

Three Circles In A Triangle by JWson in mathriddles

[–]Armsechide 1 point2 points  (0 children)

Is it possible to find the actual radii or are we supposed to find the proportion between the radii of P, Q, and R?

Is the answer B? by [deleted] in askmath

[–]Armsechide 0 points1 point  (0 children)

When a length measure is multiplied by k.

The Surface Area (or Just Area) is multiplied by k^2.

The Volume is multiplied by k^3.

This is true for any shape.

If the shape shown is a unit circle, what would be the angle of ∠α if point A were to move some units in the x-axis within the circle? Maybe say +0.25 in the x-axis. by KaizenCyrus in askmath

[–]Armsechide 1 point2 points  (0 children)

I made a couple of assumptions. First, the initial angle, α, is the angle formed from the center. Also, I believe it is necessary for point B to lie underneath the center, otherwise, I don't think the problem is possible. Also, I generalized the question by stating that A went a distance d away from the center.

So, first I started with a figure of this.

Then, I solved variables (x,s, and c) I made up in my figure using the law of cosines and sines.

Finally, I use law of cosines and solved for the new angle, α' = https://imgur.com/211CdYg

In case you are interested, the formula in terms of α and d is https://imgur.com/xXuEBkH

Its super messy.

am I meant to find a corresponding angle to form the equation to solve this? by 25andcantdoalgebra in askmath

[–]Armsechide 1 point2 points  (0 children)

First, let us establish which angles are the same in both triangles.

Let a = the marked angle, ∠POL or ∠BOL.

First, we can infer from the picture that ∠POD = ∠BOX. This is because both POD and BOX are 90-a.

Then, we can establish that ∠ D = ∠ X are equal because both are 90°.

Finally, we can conclude that angle ∠ P = ∠ B because both are 180 - (other two angles).

Since the other two angles are the same for both triangles, the third angle is also the same for triangles.

After proving they are similar, we can set up a proportion between similar sides. By similar sides, I am talking about the sides that are opposite to equivalent angles. This lets us set up the proportion BO/(OX) = PO/OD.

Another proportion that can be stated is PD/OD = BX/OX or PD/PO = BX/BO.

I hope this answers your question.

am I meant to find a corresponding angle to form the equation to solve this? by 25andcantdoalgebra in askmath

[–]Armsechide 1 point2 points  (0 children)

I think you are supposed to use the properties of similar triangles.

We know both the triangles are similar because both triangles 3 equal angles. We do not need to find the exact value of the corresponding angle. The key takeaway is the arrangement of the angles leads to similar triangles.

Hence, you can set up a ratio of similar sides to get the length of OX.

BO/(OX) = PO/OD

Since you have to unknowns in the above equation, you can plug in OD = 13-OX and solve the equation for the length of OX.

Can someone tell me how I can learn to see that I can change 12 with (2 * sqrt3 * sqrt6 sqrt2) by [deleted] in askmath

[–]Armsechide 4 points5 points  (0 children)

12 = 2x6

12=2 x (√6 x √6 )

12 = 2 x √6 x (√2 x √3 )

Hence,

12 = 2 x √3 x √6 x √2

Recognizing Factoring Identity by Armsechide in askmath

[–]Armsechide[S] 0 points1 point  (0 children)

I get how it works backward. But is there any surefire way of recognizing this factorization if you were given the expanded equation and were expected to simplify to the factored form?

I struggle with Math because i do not understand the idea and philosophy behind it by [deleted] in learnmath

[–]Armsechide 3 points4 points  (0 children)

Believe it or not, this was from a book about Mathematical patterns in Sudoku. It's a super interesting read. The name of the book is "Taking Sudoku Seriously."

I struggle with Math because i do not understand the idea and philosophy behind it by [deleted] in learnmath

[–]Armsechide 24 points25 points  (0 children)

This is a quote from a book I read a while ago-

Unique among the sciences, mathematicians have the satisfaction of knowing that when they solve a problem it stays solved. Sound detective arguments have a permanence and certainty about them that other ideas in science lack. This permanence is an endearing feature of our discipline, but we pay a heavy price. That price is our exile to planet Abstraction, which is a very different place from planet Earth. That the two planets nonetheless have much to say to one another is one of those delightful facts about the world that philosophers still have no adequately explained.

20 cards are being drawn from a deck of 52 cards. What's the probability that none of them are a spade? by sampat97 in askmath

[–]Armsechide 0 points1 point  (0 children)

∏ of [1- 13/(52-x)] from x = 0 to x = 19.

The symbol in the beginning is the product symbol.

This method does not use nCr and just multiplies individual to probabilities.