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by Cuchulainn
Today, 7:16 pm
Forum: General Forum
Topic: Philosophy of Mathematics
Replies: 171
Views: 20354

Re: Philosophy of Mathematics

Could you elaborate what you mean by "load of junk"?
Aka ad-hoc mathematics

https://en.wikipedia.org/wiki/Relativis ... conduction

It's awful.

They drew the analogy with this humble PDE

https://en.wikipedia.org/wiki/Telegrapher%27s_equations
by Cuchulainn
Today, 6:54 pm
Forum: General Forum
Topic: Philosophy of Mathematics
Replies: 171
Views: 20354

Re: Philosophy of Mathematics

 As long as the formulation of the model is stated clearly and completely, it is not wrong.

Well, no. This PDE is a load of junk.

Image
by Cuchulainn
Today, 1:34 pm
Forum: Numerical Methods Forum
Topic: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio
Replies: 7
Views: 93

Re: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio

To people here in general, and Cuculainn in particular, "finite difference method" triggers an immediate association with partial differential equations. Indeed, this is standardised mathematical jargon. A la carte definitions abound in AI and physics. Maybe OP means the calculus of finite differen...
by Cuchulainn
Today, 1:13 pm
Forum: General Forum
Topic: Philosophy of Mathematics
Replies: 171
Views: 20354

Re: Philosophy of Mathematics

IMHO, HHC is just a crude approximation, 

LOL, it violates the Second Law of Thermodynamics. It's wrong.

The question is: do we believe Fourier or Einstein? And more importantly, it's the wrong question.
by Cuchulainn
Today, 10:52 am
Forum: Numerical Methods Forum
Topic: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio
Replies: 7
Views: 93

Re: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio

Is it possible to back up the words with a formula/PDE? 

// Once you get beyond 3 underlings FDM is out of the question.
by Cuchulainn
Yesterday, 11:20 pm
Forum: Off Topic
Topic: UK going to the dogs
Replies: 4796
Views: 357341

Re: UK going to the dogs

Did anyone die because of your incompetence?
None. They were all in an advanced state of rigor mortis when they arrived in my department as we say in the trade. We even once has a case of trigger mortis.
by Cuchulainn
Yesterday, 6:32 pm
Forum: Off Topic
Topic: UK going to the dogs
Replies: 4796
Views: 357341

Re: UK going to the dogs

I managed to get a job in a hospital morgue with a BA (Mod) maths degree and a smattering of Dutch. These days - being a polyglot - means I would,be overqualified.
by Cuchulainn
Yesterday, 5:50 pm
Forum: Off Topic
Topic: Stupid question of the day
Replies: 1712
Views: 69355

Re: Stupid question of the day

Do you really think that Greek columns and fruit baskets are beautiful on a modern, steel office building?
by Cuchulainn
Yesterday, 5:18 pm
Forum: Numerical Methods Forum
Topic: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio
Replies: 7
Views: 93

Re: Difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio

What is the difference between pricing a closed form and finite difference method whilst pricing liquid CDS portfolio? Can anyone share any articles which are not too mathematical intensive and can explain the differences? Where's the bottleneck, exactly? your knowledge of FDM in general? What's CD...
by Cuchulainn
Yesterday, 3:40 pm
Forum: Off Topic
Topic: Happy Thanksgiving !
Replies: 17
Views: 62479

Re: Happy Thanksgiving !

You don't fool me. Cold weather is in Celsius, even in USA.

It's global WARMING big time over there
by Cuchulainn
Yesterday, 3:24 pm
Forum: Off Topic
Topic: Grammar Time!
Replies: 1601
Views: 177780

Re: Grammar Time!

questionnaire containing 137 questions

questionnaire consisting of 137 questions??

A non-physical thing cannot contain things. ??
by Cuchulainn
Yesterday, 1:27 pm
Forum: Politics Forum
Topic: UK and the EU: In or out?
Replies: 1475
Views: 43023

Re: UK and the EU: In or out?

Funny that the British are so fond of making such jokes, given that the largest WWII British military operation was an evacuation ;-)
But not when compared to  Вели́кая Оте́чественная война́

And not forgetting Arnhem (Monty bad, Patton good).
by Cuchulainn
Yesterday, 1:00 pm
Forum: Off Topic
Topic: Happy Thanksgiving !
Replies: 17
Views: 62479

Re: Happy Thanksgiving !

Have a good one, but it's hardly brass monkey weather.
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