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When editing an equation, the innermost parentheses around the insertion point are always highlighted to help you avoid mistakes that can occur when you are lost in a sea of parentheses.

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New choices for rules rules for initial values. You can now compute the initial value as a constant value multiplied or divided by the initial slope, the final slope, or the slope at the middle of the graph.

When defining an equation, you can enter equations to report values calculated from the parameters. Enter "Y[logEC50]" to report the Y value when X=logEC50, or "X[B]" to report the X value when Y=B.

Three improvements when fitting a model defined by a differential equation:  

oSet X0 to any value (Prism 6 always set it to 0.0).

oUse the <A> or <B> notation to define different equations for different data sets.

oChoose to share or not share the value of Y0 among data sets.

 

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