Descriptive Geometry challenge

AI Thread Summary
The discussion revolves around a Descriptive Geometry challenge involving the determination of an oblique plane that forms specific angles with the horizontal and vertical planes. Participants express that while the task may be straightforward for experts, it poses significant difficulty for regular students. A request for assistance is made, seeking guidance or a completed example of the exercise. The topic has been moved to "General Math" as it does not relate to Tensor Analysis or Differential Geometry. Overall, the challenge highlights the complexities of geometric projections for learners.
saz
Messages
1
Reaction score
0
This exercise may be easy for some experts, but for regular students (like me) you'll get some smoke out of those heads! =)

The objective is pretty simple: "Determine an oblique plane (double-projection) that does an angle of 60º with the horizontal plane and 40º with the vertical plane"

Hint: Use the lines of greater inclination and greater decliveI haven't managed to do it yet, so I'd appreciate someone who could help me by giving some orientation or if possible a "scan" of the completed exercise.(sorry for my bad english)
 
Mathematics news on Phys.org
Since this has nothing to do with either Tensor Analysis or Differential Geometry, I am moving it to "General Math".
 
Thread 'Video on imaginary numbers and some queries'

Thread 'Video on imaginary numbers and some queries'

Hi, I was watching the following video. I found some points confusing. Could you please help me to understand the gaps? Thanks, in advance! Question 1: Around 4:22, the video says the following. So for those mathematicians, negative numbers didn't exist. You could subtract, that is find the difference between two positive quantities, but you couldn't have a negative answer or negative coefficients. Mathematicians were so averse to negative numbers that there was no single quadratic...
View full post »

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
View full post »

Thread 'Non-orthogonal bases'

Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
View full post »

Similar threads

I A way to comprehend the geometry of a hypercube
Replies
2
Views
2K
MHB Solving Geometry Problem in Sediment Bed Research
Replies
2
Views
2K
Geometry of perspective: apparent projected distance
Replies
1
Views
2K
MHB Help with Projective Algebraic Geometry - Cox et al Section 8.1, Exs 5(a) & 5(b)
Replies
1
Views
2K
MHB Projective Algebraic Geometry - the Projective Plane ....
Replies
8
Views
2K
MHB Peter Needs Help on Cox et al - Section 8.1, Exercise 3(a)
Replies
3
Views
2K
Challenge Math Challenge - December 2020
2
Replies
60
Views
11K
What is the rate of change of angle for a knight jumping on a chess board?
Replies
3
Views
3K
B Normal Force Discrepancy for Wedge Vs. Ramp
Replies
9
Views
3K
Reviving Math Challenges: Can You Solve These Tricky Problems?
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top