Add new comment

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.
What do chocolate and mayonnaise have in common? It's maths! Find out how in this podcast featuring engineer Valerie Pinfield.
Is it possible to write unique music with the limited quantity of notes and chords available? We ask musician Oli Freke!
How can maths help to understand the Southern Ocean, a vital component of the Earth's climate system?
Was the mathematical modelling projecting the course of the pandemic too pessimistic, or were the projections justified? Matt Keeling tells our colleagues from SBIDER about the COVID models that fed into public policy.
PhD student Daniel Kreuter tells us about his work on the BloodCounts! project, which uses maths to make optimal use of the billions of blood tests performed every year around the globe.
Someone said:
"Instead of ^ (which is commonly know as "to the power of") use this ↑.
They are not the same thing."
Incorrect. When it has been specified that "^" is being used to stand for Knuth's uparrow, then yes, it becomes the same thing.
Unless a computer keyboard has the uparrow, it's necessary to substitute something else for it.
A good reason why "^" is a good substitute is the fact that one uparrow means the same as "^": Exponentiation.
Therefore, "^" is the natural and obvious substitute for the uparrow, if the computer keyboard doesn't have the uparrow.
Michael Ossipoff