Browse Groups

• ## Wanting to find more undocumented features and commands

(3)
• NextPrevious
• Looking through the demos, I see some things that as far as I know are not documented or hardly mentioned in any of my reading about graphing calculator. Is
Message 1 of 3 , Feb 18, 2009
View Source
Looking through the demos, I see some things that as far as I know are
not documented or hardly mentioned in any of my reading about graphing
calculator. Is there a place where I can find out more secrets?

For example, under Examples/Three Dimensions/Tangent Plane, what do
the ug(a,b) and vh(a,b) do?

Also under Examples/Advanced Topics/Dot Product, you can drag the
endpoints of both vectors around and the complex number is
automaticaly updated. Is there a way to make it so that a point in
the standard x-y plane can be dragged around the graph and the x and y
coordinates would be automatically updated?

Any help would be greatly appreciated. Thanks
• On Feb 18, 2009, at 3:08 PM, johnalbers2003 wrote: Looking through the demos, I see some things that as far as I know are not documented or hardly
Message 1 of 3 , Feb 18, 2009
View Source

On Feb 18, 2009, at 3:08 PM, johnalbers2003 wrote:

Looking through the demos, I see some things that as far as I know are
not documented or hardly mentioned in any of my reading about graphing
calculator. Is there a place where I can find out more secrets?

For example, under Examples/Three Dimensions/Tangent Plane, what do
the ug(a,b) and vh(a,b) do?

These are actually the "graphing variables" u and v multiplying the functions g(a,b) and h(a,b).
I've redone the file slightly below to make it clearer (at least to me) what's going on:
Both of the equations below work, but the second version is more streamlined, and enables you to use more surface graphics, such as checkerboarding, as shown.
• ... It s actually the points a and b , represented by complex numbers, that are being dragged around. ￼ ￼ You can have any points draggable by assigning
Message 1 of 3 , Feb 18, 2009
View Source

On Feb 18, 2009, at 3:08 PM, johnalbers2003 wrote:

Also under Examples/Advanced Topics/Dot Product, you can drag the
endpoints of both vectors around and the complex number is
automaticaly updated. Is there a way to make it so that a point in
the standard x-y plane can be dragged around the graph and the x and y
coordinates would be automatically updated?

It's actually the points "a" and "b", represented by complex numbers, that are being dragged around.
Your message has been successfully submitted and would be delivered to recipients shortly.
• Changes have not been saved
Press OK to abandon changes or Cancel to continue editing
• Your browser is not supported
Kindly note that Groups does not support 7.0 or earlier versions of Internet Explorer. We recommend upgrading to the latest Internet Explorer, Google Chrome, or Firefox. If you are using IE 9 or later, make sure you turn off Compatibility View.