I was able to plot this expression without any difficulties. See the attached document.

There are several things to look out for. First, make sure that x is not defined. Choose Compute, Definitions, Show Definitions. If x is defined, click OK, go to a new line, toggle to math, enter x, and choose Compute, Definitions, Undefine.

If the expression is in a display and is preceded by "y=", then this could cause problems. Either enter the expression in-line or highlight the "squr(1-x^2)" and then choose Compute, Plot 2D, Rectangular.

If you continue to have problems, please feel free to attach a document that demonstrates how you are attempting to plot the expression. Alternatively, you can send a sample document to support@mackichan.com.

## I was able to plot this

I was able to plot this expression without any difficulties. See the attached document.

There are several things to look out for. First, make sure that x is not defined. Choose Compute, Definitions, Show Definitions. If x is defined, click OK, go to a new line, toggle to math, enter x, and choose Compute, Definitions, Undefine.

If the expression is in a display and is preceded by "y=", then this could cause problems. Either enter the expression in-line or highlight the "squr(1-x^2)" and then choose Compute, Plot 2D, Rectangular.

If you continue to have problems, please feel free to attach a document that demonstrates how you are attempting to plot the expression. Alternatively, you can send a sample document to support@mackichan.com.