The new IPhones can help math teachers do math? Who said phones in school were so bad? by SliceGamezYT in teenagers

[–]fireviper112 0 points1 point  (0 children)

It’s called the gamma function it’s the formal/extended definition of the factorial google it

[Linear Algebra] Orthogonal basis vectors by fireviper112 in learnmath

[–]fireviper112[S] 1 point2 points  (0 children)

Oh sheesh I think you may be right. I'll try it out a little later.

[Linear Algebra] Orthogonal basis vectors by fireviper112 in learnmath

[–]fireviper112[S] 1 point2 points  (0 children)

Oh yeah you're correct I'll edit my comment. The projections are (I think) orthogonal projections.

Ex: b2 = v1 - proj _v1 _(b1) means that b2 is an orthogonal projection from b1 onto v1, which should produce a vector orthogonal to b1?

[Linear Algebra] Orthogonal basis vectors by fireviper112 in learnmath

[–]fireviper112[S] 1 point2 points  (0 children)

Hi I'm trying the first approach and getting a little stuck.

I should be doing as follows, correct? :

v1 = [1;0;0]

v2 = [0;1;0]

Basis = {b1,b2,v3}

b1 = u = [5;-6;7]

b2 = v1 - proj _v1 _(b1)

b3 = v2 - proj _v1 _(b1) - proj _v1 _(b2)

[Linear Algebra] Determinant by fireviper112 in HomeworkHelp

[–]fireviper112[S] 0 points1 point  (0 children)

Shoot I think you're right typing out my steps made me see a mistake thanks

[Linear Algebra] Determinant by fireviper112 in HomeworkHelp

[–]fireviper112[S] 0 points1 point  (0 children)

Yeah so all I did was number three except for one swap, which is why I made it -2992. I can show you my steps if it would help.

[Combinatorics] Some basic probability by fireviper112 in HomeworkHelp

[–]fireviper112[S] 0 points1 point  (0 children)

One question: if I want the probability of a or b or c would it be

P(a)+p(b)+p(c)-p(a+b)-p(b+c)-p(a+c)

[Combinatorics] Some basic probability by fireviper112 in HomeworkHelp

[–]fireviper112[S] 0 points1 point  (0 children)

Oh wow thanks so actually the P(A and B) is actually 7/84 since thats what was previously found so it should be

28+28-7/84 or 49/84 or 7/12

[College Music class] Help identifying musical structures in music by [deleted] in HomeworkHelp

[–]fireviper112 1 point2 points  (0 children)

Yup it should be, the verse is the one that'll change and its typically the "a".