import essential.*;

public class SpiralTurtleDriver {
    public static void main(String[] args) { 

        SpiralTurtle tim = new SpiralTurtle();
        tim.drawSpiral();

        SpiralTurtle tom = new SpiralTurtle(0.5);
        tom.drawSpiral();

    }
}

@@ -219,9 +219,9 @@
 e(0.
-5
+3
 );%0A 

fix value typo