# Homework Help: Curvilinear abscissa

1. Feb 21, 2010

### fishingspree2

Hello,

what does curvilinear abscissa mean?

thank you

2. Feb 21, 2010

### tiny-tim

Hello fishingspree2!

I think it just means that you use a curvilinear grid instead of the usual rectangular Cartesian grid …

you follow the line down to the "axis" in the same way that you'd usually follow a straight line to the x-axis to get the usual abcissa (x-coordinate).