If your vector field function is constant, just add "+(x-x)" to any of the coordinates to fix a desmos thing that makes the colors look wrong. Or else, use manual-scaler and copy this value to "f", the scale factor:
19
Expression 20: StartFraction, "d" Over distance left parenthesis, left parenthesis, 0 , 0 , right parenthesis , "F" left parenthesis, "R" left parenthesis, "N" , right parenthesis . "x" , "R" left parenthesis, "N" , right parenthesis . "y" , right parenthesis , right parenthesis , EndFractionddistance0,0,FRN.x,RN.y
20
Change arrowhead shape to any shape you want:
21
Expression 22: "a" left parenthesis, "x" , right parenthesis equals StartAbsoluteValue, Start Cube Root, StartFraction, "x" Over 3 , EndFraction , End Cube Root , EndAbsoluteValueax=3x3
22
Use this to test shapes:
23
Test arrow shape
Hide this folder from students.
24
change the domain of the test function to -k <= x <= k