kisonecat / m2o2c2

Multivariable calculus course materials

suluclac

Multivariable calculus course materials

m2o2c2's Issues

Hints should animate when uncovered

Having things suddenly appear on the page can be disorientating for the reader.

Error in last question of /week2/multivariable-derivative/intuition/

Where it asks for Approximate f(1.01,1.98) , it should ask for Approximate f(1.01,1.99).

calculus.tex don't seem to show the editor...

"\end{document}" related?

"Insert image" in editor toolbar does nothing

Vertical vectors not being correctly displayed in proofs.

When I try to enter the following, $\verticalvector{1 \ 2 \ 3}$ into any proof entry textbooks, I get the a horizontal vector as output, instead of a vertical one.

Misplaced ) in model solution for Composition

The 3rd line up in the model solution for Composition looks like it has a misplaced ).

Incorrect Factorization in Limits Activity

We can consider the limit component by component

lim(x,y)→(2,2)x2y−2yx−2=lim(x,y)→(2,2)(x−2)(x+2)yx−2=lim(x,y)→(2,2)y(x+2)=2(2+2)=8

x^2y-2yx does not factor to (x-2)(x+2)y. (x-2)(x+2)y = (x^2 -4)y

week1/linear_maps/python: zip and map not supported?

A very minor quibble:

For the first exercise, the following should work:

def vector_sum(v,w):
  return map(sum, zip(v, w))

All three test cases check out:

>>> vector_sum([1,2],[4,1])
[5, 3]
>>> vector_sum([-5,23],[10,2])
[5, 25]
>>> vector_sum([1,5,6],[2,3,6])
[3, 8, 12]

But for some reason Ximera doesn't allow it. I'm using Python 2.7.

Empty matrix input boxes do not display

eg no visible cells for any matrix at:
http://ximera.osu.edu/course/kisonecat/m2o2c2/course/activity/week1/linear-maps/matrices/

Pressing matrix input + or - does not make any rows or columns visible for input.
See comments.

Missing tick marks on axes

Add test cases to Python exercises

Vector and matrix entry for solutions not working with Safari

Starting with Week 5, I am unable to add rows or columns to answers that require vectors or matrices in Safari.

Details:

Macbook Air 11"
OS X 10.9.2
Safari version 7.0.3 (9537.75.14)

Tried Safari quit/restart but it did not help.

Need a little info on notation Week 1

In the quiz "L[ 0 1 ] and L[1 0] matrix notation was used. I missed something as it doesn't seem correct. Please advise what I'm looking at, Thanks.
Jon

masterDocument.tex doesn't compile

xelatex nor pdflatex can compile masterDoucment.tex. Is there another way to compile this project into a PDF?

Input Problem with Functions (only accept 0.xx not .xx)

Hi Jim et. al.,

With the function section of the M2O2C2 it gave me an error with a rather simple input. For sin(pi/6) it should be .5 but it would not accept this and threw an error.
Type Error: Object doesn't support property or method 'slice'

NOTE: It would accept 0.5 (but not .5).

So it seems like the parser is forcing you to have to type a 0 (zero) in front of the decimal point. Although this is good way of doing things I think that graphical user friendliness this is not that friendly and could even throw some people for a loop.

It looks like maybe the . (dot) has some purpose maybe in some inputs? (or is it a system/language property that got overlooked). If it is needed then maybe you could write it that if you are suspecting a numerical input to turn that (. dot) feature off, other times when expecting a non-numeric input leave the default (. dot) feature?

http://ximera.osu.edu/course/kisonecat/m2o2c2/course/activity/week1/functions/

Lastly thanks for the Calc I and Series class and this class. Keep up the good work...

Matrix input doesn't exist

On latest version of Chrome, in windows 8, no input exists for the example matrix input.

wrong order of arguments in Curry

Let B: VxW -> R then Curry(B): V -> W -> R or equivalently Curry(B): V -> W*.

Currently, "Linear maps and bilinear forms" activity says Curry(B): W -> V*