[rich d]

I'm having a blonde moment and can't get anywhere, can the wise of UKB help.
Also found I can't write the equation properly on here so bear with me
Z= r - square route of r squared -y squared
R squared -y squared are both under the square route
I need to calculate y
Sorry that is so poorly written - stupid bloody iPad...
Thanks rich

[JonWells]

assuming i read it right:

z = r - sqrt(r² - y²)
sqrt(r² - y²) = r - z
r² - y² = (r - z)²
y² = r² - (r² - 2rz + z²)
y² = 2rz - z²

y = sqrt(2rz - z²)

hope that helps

[rich d]

Lovely thanks

[aLICErOBERTSfANkLUB]

"sqrt"

Fnarr-fnarr!

[tomtom]

Square root might raise a titter down under fnarr fnarr

[aLICErOBERTSfANkLUB]

GPWM.