I must be missing something simple for the example in the Advanced Graphing App. Entered the example in the Users Guide on page 119. Which is: x^2/27*x*y/10+3*y^2/4x/10+y/510<0. I did not use the multiplication symbol '*' since the example didn't use it. However I get an: "Error: Syntax Error" message. I also get the same message on the simulator when entering this formula and hitting the <enter> key. What am I missing?
Advanced Graphing App.


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