# Difference between revisions of "Standard Notation"

• $\displaystyle{ x }$ and $\displaystyle{ y }$ in the horizontal plane with $\displaystyle{ z }$ pointing vertically upward and the free surface at $\displaystyle{ z=0 }$
• Water depth $\displaystyle{ h }$ with the bottom at $\displaystyle{ z=-h }$
• Time $\displaystyle{ t }$
• Velocity potential $\displaystyle{ \phi }$
• Angular frequency $\displaystyle{ \omega }$
• Time dependence in frequency domain $\displaystyle{ e^{i\omega t} }$