Enter x:=3; y:=2 Note that Maple uses a
semicolon to separate two
statements which are on the same line. Both statements are
executed and the results displayed.
Enter 2*x + y
The result of the
preceding step follows from the fact that the variable xhas been assigned the value
3 and the variable yhas been assigned the value 2. Check this by entering x; y
Enter the following
line. Note that it ends with a colon. z:=5: Now, enter
z Entering a command with a colon has the same long-term
effect as entering it without, but nothing is displayed
afterwards.
Use pencil and paper to
decide what number xy2 + 3z represents, and then check
your answer by entering x*y^2+3*z Use your mouse to return to the expression just entered,
replace the 3 by 4, and press RETURN.
Suppose we want to remove the identification of x with
3. Enter x:='x' Check this by entering x
Now remove the
identifications of ywith 2 and zwith 5. Check by entering x*y*z You should see
xyz
as the output.
Maple
distinguishes between := and =. The first is used for definitions.
The equals sign alone is used to enter equations. Check this by
entering s^2 - s - 1 = 0 Use your mouse to highlight this expression, and select "Solve" > "Solve for Variable" > "s"
from the Context Panel on the right-hand side of your Maple window. (If the Context Panel is not open, click the << button in the upper right corner of the window.) Maple should make an
arrow pointing to the desired
output. (In Maple versions 11
and higher the arrow is labeled "solve for s".)
Enter 2 +
3 and then % +
5 The percent sign has the value of the last quantity
calculated. Check this by entering x*y and then % + z
