All Questions
5
questions
3
votes
3
answers
573
views
Why does the sign in Newton's method matter?
Deriving Newtons Method visually as with the help of a right triangle and assuming $x_1$ lies the left of $x_0$ we get $$x_1 = x_0 - \frac{f(x_0)}{f'(x_0)}$$
Using slope over run.
but if we assume $...
- 675
0
votes
1
answer
72
views
calculus applied to fields in physics
Having trouble with the maths in this question, I realise this is a physics question so I apologise if this isn't allowed, but some mathematicians might be able to solve it well. I asked this in the ...
- 29
2
votes
2
answers
84
views
Is it possible to find angles and length of woods?
With respect to the picture below, is it possible to find the angles and the length of the wooden bars, if we have no further information? Any hint or clue would be appreciated.
- 25.2k
-1
votes
1
answer
107
views
Word problem based on differentiation - a right circular cone.
The height of a right circular cone increases by $k\%$, its semi vertical angle remaining constant. Assuming $k$ to be small what is the approximate percentage increase in (i) total surface area (ii) ...
- 151
6
votes
1
answer
513
views
Validating a mathematical model (Lagrange formulation and geometry)
I am working on computing phase diagrams for alloys. These are
blueprints for a material that show what phase, or combination of
phases, a material will exist in for a range of concentrations and
...
- 633