Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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mikau
2005-09-08 09:33:06

Right then. What do alpha, beta, and gamma stand for in matrices?

ganesh
2005-09-04 16:47:20

It is omega, and looks a little like w.
In physics, omega stands for angular velocity.
w = dθ /dt where θ is angular displacement and t is time.
In many electricity/magnetism formulae, 2*pi*w is found.
The unit of angular velocity is radians and 2*pi radians is equal to 360 degrees.
Interestingly, alpha is angular acceleration, dw/dt or d²θ /dt².
The Greek alphabets are used to represent various parameters in Physics, like mu is refractive index, rho is specific gravity (and specific resistance too), lambda is wavelenght etc.

mikau
2005-09-04 10:50:49

I'm pretty sure its called omega, it looks like a w drawn with curves. Or kind of like a horizontal "8"

I've seen this symbol several times. What does it mean? My mathbook used it once to stand for radians per second, in angular velocity problems. But I tend to see it a lot in places where its meaning appears to be undefined.

What does this symbol stand for? Is it just used for variables or does it always mean the same thing?