20 mph speed limit.

[roubaixtuesday]

Only incorrect when talking in Mathematics.

Perfectly correct when talking in English.

Various dictionaries agree, but presumably you will claim they are also incorrect, and don't know the English definition of words.

Go to a technical or scientific dictionary, as opposed to a normal English one, and the mathematical definition will be there (as is the case in my copy of Chambers Dictionary of Science and Technology).

Claiming it's correct is like claiming "it weighs a ton" is correct for a BSO.

 

[Deleted member 1258]

All this mathematics is making my head spin, last time I did equations was in school, and I left in 1967.

 

[roubaixtuesday]

All this mathematics is making my head spin, last time I did equations was in school, and I left in 1967.

Don't spin it too fast, centripetal force is proportional to the square of angular velocity.

(But at least it's not exponential)

 

[Fab Foodie]

Just lots of Welsh folk getting cross !

What's new!

 

[Fab Foodie]

Yay someone else who understands.

If more than 3 people agree on something CC will explode!

 

[Profpointy]

All this mathematics is making my head spin, last time I did equations was in school, and I left in 1967.

must have been quite hard doing calculations with Roman numerals

 

[Fab Foodie]

A view:
https://www.theguardian.com/comment...-as-you-go-at-20mph-and-welcome-to-the-future

 

[Fab Foodie]

must have been quite hard doing calculations with Roman numerals

They were the first of the Abacus age....

 

[Drago]

Back home in the islands, ancient mathematics only went as far as the number of fingers. Hence base 12 being popular for so long.

 

[Deleted member 1258]

must have been quite hard doing calculations with Roman numerals

Cheeky sod, I ain't that old.

 

[Oldhippy]

Wasn't it the Chinese nation that came up with the abacus?

 

[Andy in Germany]

Is there any feedback from Welshielands about how this 20mph speed limit is going?

I was wondering about that. Perhaps the car lobby was right: civilisation as we know it has collapsed, and no-one can get out of the traffic jam to warn us?

 

[PapaZita]

An interesting thing (I’m sure everyone agrees) about exponential functions is that the derivative of e^x is also e^x. This means that the rate of growth of an exponential function also increases exponentially. As does the rate of growth of the rate of growth, and so on. Is there any type of function that has the potential to grow more quickly? Not that I know of. Compound interest is an example of exponential growth which is why it’s good to be earning it and less good to be paying it. Einstein described compound interest as the eighth wonder of the world.

 

[Fab Foodie]

An interesting thing (I’m sure everyone agrees) about exponential functions is that the derivative of e^x is also e^x. This means that the rate of growth of an exponential function also increases exponentially. As does the rate of growth of the rate of growth, and so on. Is there any type of function that has the potential to grow more quickly? Not that I know of. Compound interest is an example of exponential growth which is why it’s good to be earning it and less good to be paying it. Einstein described compound interest as the eighth wonder of the world.

You may think that, I couldn't possibly comment....

 

[fossyant]

An interesting thing (I’m sure everyone agrees) about exponential functions is that the derivative of e^x is also e^x. This means that the rate of growth of an exponential function also increases exponentially. As does the rate of growth of the rate of growth, and so on. Is there any type of function that has the potential to grow more quickly? Not that I know of. Compound interest is an example of exponential growth which is why it’s good to be earning it and less good to be paying it. Einstein described compound interest as the eighth wonder of the world.

Not sure what that's got to do with Welsh 20 mph's.