new graphing app

while I was attending the technollogy conference,I talked with someonewho shared a new graphing app called Desmos.  it is bothan online graphing calcultor and an app for the iPad.  this product differs from most graphing apps in that you do not have to rewrite the equations into y=something  aand it graphs inequalitiez. this is nice so my students can check their work and it means students who areweak inrewritting equationz can still finish the assignment.  As soon as I get back to work, I will have this app installed on the iPads.  I have two or three apps to add.