# Thread: Mathematical equations and formulas

1. ## Mathematical equations and formulas

Hey guys ..

I would like to know what your all time favourite mathematical equation/formula is.

I have been looking at Euler's Equation and Heisenberg's Uncertainty Principle but then i like the skeletal formula of Serotonin .. I need some inspiration as i want something that can explain so much of what we are made of, of who we are and of how far we've come and who better to ask than you guys. It needs to be aesthetically pleasing also.

2. -1 + 1 = 0

0 = -x + x

3. Soh Cah Toa

its the one I have found the most useful

4. Euler's beautiful and Bernoulli's equation rocks! There's also the quadratic formula. So simple and yet, essential. *sigh*

5. The formula for warp speed. ds^2=-dt^2+(dx-vsf(rs)dt)^2

6. ΔE = W + Q + E

E is the change in energy in a system, W is work, Q is heat transfer, E is additional energy put into the system from outside

Force = Torque / (r*sin(θ))

r is distance from the torque to the object to which it is applied, θ is angle between force vector & r

7. Originally Posted by _Poki_
Soh Cah Toa

its the one I have found the most useful
I guess I will extrpolate mine

Sin = Opposite/Hypotenuse

Nothing special, it just comes in handy when calculating dimensions while building things.

8. equation for torque makes my world go round

[none of the possible puns intended]

9. MegaMe = NunYa :yim_rolling_on_the_

10. I've always hated equations. Memorizing boring shit that I don't care about. If I had to pick one I'd go with f'(x) = (limit as h approaches 0) f(x+h) - f(x) / h (the function for derivatives) because derivatives and integrals are awesome concepts, and that equation is less about memorizing what numbers go where than it is about understanding larger ideas. I really like related rates but can't quite remember how to do them.

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