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5




4. , 5, +, x.

, , , .

. . , Insert. . , . , . (, ) Insert. , . , , =, .

 

=2.3 1+ x5+x = 438.133

 

. Shift. , Delete. ← .

, , , , , / /.

 

/. ( Ctrl). .

. MathCAD , . : . . , . , , .

, ( , ; × ) , :=. : .

 

, . ,

 

:= 10 := ( 3)2 + 1.

 

( =, :=) , , , MathCAD . , , , , , () (). , ( =), () (:=) .

: f (x, ), f , x, - .

, , , , , , =. . ,

 

:= 10 ( 3)2+1= 50

f(x,y):=x2 cos(x+y) f(2,5.99)= 0.542

 

( ) . → ( ) Ctrl, +. , , ( ). ,

 





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