HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010

We can now use the
LINSOLVE function to find A and B. While the
second linear equation is still highlighted, fetch the
LINSOLVE
command from the menu. Then press and to
highlight the linear expression again as shown right.
Now, while the entire expression is highlighted, as shown above, press
SHIFT (-) to obtain the ‘AND’. The result should be as shown right.
If yours looks like the version shown to the right then the error has been
caused by not having the whole expression highlighted before pressing
AND. Press DEL to remove the AND, then do it properly.
The other equation is still available from the CAS History. Begin by ensuring that no part of the current
equation is highlighted and that the cursor is positioned where you want the new equation, immediately after
the
AND. If any portion of the expression in the editor is highlighted when you perform an then it will
be replaced by the expression being echoed.
To fetch it, press
SYMB and highlight the required equation. Pressing will echo it to the point of the
cursor.
We can then finish off the
LINSOLVE command by pressing right arrow to move to the second parameter
position and then entering “
A AND B”. At that point we can press ENTER to obtain the values of A and B.
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