Verify values in a table are correct

[Daniel_Grubbs]

You probably want countNumberUsage. Check out this post (you can still use numericValue instead of evaluateAt):

Checking Math Input for Correct Rational Expression

The more complicated (but stable) method is to evaluate a function AND check that certain numbers were used (since you’re looking for a particular format), so for your example above: #student expression exp=this.latex #student input as a function f=simpleFunction(exp) check= f.evaluateAt(3)=0 and f.evaluateAt(2)=-0.2 and countNumberUsage(exp,3)=1 and countNumberUsage(exp,2)=1 and countNumberUsage(exp,1)=1 You want to evaluate at as many values you feel is adequate. I only did a few but…