Math is Fun!

[Perfect Warrior]

IIRC Mathpiglet teaches in Ontario, right? So she's dealing with that going online without warning. I wouldn't blame her one bit if she's a bit F! computers after her workday is done.

[dubiousbystander]

Ever so much the truth.

[MidnightBlue]

Yeah, COVID-19 really throws a curveball into everyone's lives. Keeps it interesting, as if life wasn't difficult enough without a pandemic.

[MidnightBlue]

They have calculators that can do this?! I didn't even know. Well it's not to the advantage of banks to do continuous compound interest. I imagine, if you do end up working at a bank, instead of directly manipulating spreadsheets, SQL programming is better for data integrity. Then again, finance is not my area of focus.

[dubiousbystander]

It's hard, because we don't know what's going on in anyone's life unless they tell us. Also, what with COVID-19, I always wonder are those absent members alright? And before this, it was "Have any of them passed away?" Because that happens, too.

[Perfect Warrior]

The calculator they had us buy assumes periodic, not continuous. If I get into that it'll be in spreadsheets, I assume. Looking up compound interest the chapter it's covered in quickly launches into present value formulas.

Then, under 'some additional calculations':
Many shoppers use credit cards to make purchases. When you receive the statement for payment, you may pay the total amount due or you may pay the balance in a certain number of payments. (Then 'solving for the interest rate')

But *blip* continuous? My credit union dropped their daily interest savings years ago. Do any financial institutions really do continuous?

[MidnightBlue]

Things tend to quiet down. I hope she is, and is well!

I hope so too. Come back, mathpiglet!

[MidnightBlue]

So are you calculating stuff like continuous compound interest, P = P_0 e^(rt)?

[Perfect Warrior]

Well, I'm in the middle of taking an accounting course. With two months off I am twitching a bit to pick up a pencil and calculate. I even opened my old textbook yesterday and did part of a 'cumulative problem' (company from inception to first annual report)
Not the kind of numbers you're interested in, I suspect.

[dubiousbystander]

Things tend to quiet down. I hope she is, and is well!

[MidnightBlue]

Is mathpiglet still around? I'm desperately seeking people to do math with. Funny, that my first post is an inquiry about math on a Highlander forum ... I LOVE Highlander but somewhat less desperate about finding other Highlander enthusiasts than math enthusiasts (we are in few in number).

[mathpiglet]

It took a while, but I did see Hidden Figures. I really enjoyed it. Now I need to find the book.

[Coolwater]

Oh, no; that's OK, thanks. Easy is fine.

[mathpiglet]

Seriously? I was ssure there had to be some form of error calculation!

Oh yeah, squares are easy since the four sides are equal in length, and there are 90 degree angles.

Now if we take any quadrilateral it gets more complicated.

[Coolwater]

Seriously? I was ssure there had to be some form of error calculation!

[mathpiglet]

" ...find the circumcenter of the triangle by finding the equations of the three perpendicular bisectors of the sides of the triangles." Dear God. Canadian children are savants.
What if it's four places? Same thing with a square?

A square is easier - just find the intersection of the diagonals.

[Coolwater]

" ...find the circumcenter of the triangle by finding the equations of the three perpendicular bisectors of the sides of the triangles." Dear God. Canadian children are savants.
What if it's four places? Same thing with a square?

[mathpiglet]

Maybe they were thinking pregnancy?

OK, Mathy, here's one for you. I am a convener for a committee. One committee member is in Lexington, KY, one is in Wabash, Indiana, one is in Bloomington, Indiana and one is in West Lafayette, IN (and that would be me). So no one has to drive too far for the meeting, I'm willing to find a room in a library or ask to borrow a room from a church in a town equidistant from every member. How do we find the central point among all those places?

This is actually similar to a question I put on the grade 10 exam. Put a grid over the map and locate the three locations. Draw a triangle using the three locations as the vertices of the triangle, and then find the circumcenter of the triangle by finding the equations of the three perpendicular bisectors of the sides of the triangles. Then find the point of intersection of the three lines. A tool like Geogebra will do all the hard work for you.

http://jwilson.coe.uga.edu/EMAT6680F...gnment%204.htm

[Haplo]

...I've had a lot of practice thhhhpt'ing!

That's what he said

[Coolwater]

LOL!!!
That's what we did, Hap. If the towns we're starting from weren't at such varying distances, that might work better.

[Kat]

Watch yourself, Kat. You might do permanent damage to your tongue.

Not likely, I've had a lot of practice thhhhpt'ing!

[Haplo]

Maybe they were thinking pregnancy?

OK, Mathy, here's one for you. I am a convener for a committee. One committee member is in Lexington, KY, one is in Wabash, Indiana, one is in Bloomington, Indiana and one is in West Lafayette, IN (and that would be me). So no one has to drive too far for the meeting, I'm willing to find a room in a library or ask to borrow a room from a church in a town equidistant from every member. How do we find the central point among all those places?

An area map, a pen and a ruler. Careful that you don't end up with a pentagram connecting them. Don't think you want that kind of gathering

[Coolwater]

Maybe they were thinking pregnancy?

OK, Mathy, here's one for you. I am a convener for a committee. One committee member is in Lexington, KY, one is in Wabash, Indiana, one is in Bloomington, Indiana and one is in West Lafayette, IN (and that would be me). So no one has to drive too far for the meeting, I'm willing to find a room in a library or ask to borrow a room from a church in a town equidistant from every member. How do we find the central point among all those places?

[Coolwater]

It's a terrific film!

[Haplo]

Were the Beatles right when they sang "one and one and one is three"? I would understand if they said "plus"..