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Using the Graph Window

uView Window parameter precautions

• An error occurs if you input 0 for tθstep.

•An error also occurs if you input a value that is out of range for a parameter, if you input a minus sign only, or if you perform any other illegal input.

•An error occurs if ymin is greater than or equal to the ymax. The same is also true for the xmin and xmax. If the value you specify for tθmin is greater than the value you specify for tθmax, the tθstep setting is automatically changed to a negative value.

•When the View Window setting produces an axis that does not fit on the display, the scale of the axis is indicated on the edge of the display closest to the origin.

•Changing the xmin (ymin) or xmax (ymax) value automatically changes the xdot (ydot) value, while changing the xdot (ydot) value automatically changes the xmax (ymax) value.

uTo initialize View Window parameters

(1)On the application menu, tap T.

(2)Tap 6. This displays the View Window dialog box.

(3)Tap [Memory] and then [Initial]. This initializes View Window parameters to the values noted below.

xmin = –7.7

xmax = 7.7

xscale = 1

xdot = 0.1

ymin = –3.8

ymax = 3.8

yscale = 1

ydot = 0.1

tθmin = 0 tθmax = 6.28318530717 tθstep = 0.05235987755

uTo initialize the View Window for an angle unit

(1)On the application menu, tap T.

(2)Tap 6. This displays the View Window dialog box.

(3)Tap [Memory] and then [Trigonometric]. This initializes View Window parameters in accordance with the angle unit, as shown below.

(Setup: Radian)

xmin = –9.4247779607

xmax = 9.42477796076

xscale = 1.57079632679

xdot = 0.12239971377

ymin = –1.6

 

ymax = 1.6

yscale = 0.5

 

ydot = 0.04210526315

tθmin = 0

 

tθmax = 6.28318530717

tθstep = 0.05235987755

 

(Setup: Degree)

 

xmin = –540

xmax = 540

xscale = 90 xdot = 7.01298701298

ymin = –1.6

ymax = 1.6

yscale = 0.5 ydot = 0.04210526315

tθmin = 0

tθmax = 360

tθstep = 3

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