Consider the following context free grammar for an arithmetic expression contain- ing operation - only -> number -> - number €

(a) The following is an attribute grammar to define the value of any arithmetic expres- sion specified by the grammar above.

-> number D. value := .value > .st := number. value -> - number > 2.st := 1.st - number. value > 1.value : = 2.value -> > .value := .st Draw a decorated parse tree for 1-2-3-4 using the attribute grammar.

(b) Instead of the value of an arithmetic expression, we would like to know the number of "numbers" in an arithmetic expression. For example, in 1-2-3-4, we have four numbers. Write an attribute grammar to define the number of "numbers" of any arithmetic expression following the grammar in part a).

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

try this:

go tos official website.

click on your profile pic at the top right of the screen and click 'edit profile'.

click on "preferences" and press "year of birth".

and then just maybe try to reset whatever error made before by typing in the correct age details again. hope this !

b. related objects

explanation:

data is stored in related objects in an access database.