I am enclosing a
link to a web page that gives you the definition of the domain of a function and its range. You should read it to correct the confusion you entertain between domain and range.
In what follows I will speak of X and Y values.
Let me restate what I
think you wanted to do. Ignore my rambling if you do not recognize your
intention.
You want to draw the sin(X) function for X varying from Xmin= -2*pi radians to Xmax=2*pi radians. However, it you do not specify the Ymin and Ymax values for the vertical window dimensions a big portion of the screen is not used (vertically) and you want the height of the curve to take most of the screen. Specifically you want to set the vertical height of the window to go from Ymin=-1 to Ymax=1.
Press [SHIFT] [F3:V-Window] to set window dimensions.
On line Xmin= type : (-)2*[SHIFT][EXP] (Pi); or just (-) 6.3
Press [EXE] to validate the choice
On line Xmax= type 2*[SHIFT][EXP] (Pi) or just 6.3
Use down arrow to highlight the line Ymin= and enter (-)1
On line Ymax= type 1
You may or may not want to change the X(scale) and the Y(scale)
Press [EXIT] to exit the window settings.
Draw your graph.It will occupy all the screen.
Here is what you will get.
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