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How do I get it to graph Sin(x) - Sentry CA 756 Calculator

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Look for a key y= (y= editor). type in the right side of the function sin(x), press Draw or graph. After a graph is drawn, and if it is not well centred play with the Windows dimensions, or the Zoom functions.

Posted on Mar 24, 2012


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Graphs are drawn as the negative

There is nothing mysterious about it. Wittingly or not, you
switched the window limits.
Xmin=6.3, Xmax=-6.3
Ymin=3, Ymax=-3
or some other combinations.
Here is the 1st case (Xmin=6.3, Xmax=-6.3, Ymin=-3, Ymax=3).
The traced point has positive x

Complete switch. The graph looks correct but as
you can see the traced point has positive x,
and negative y.

I did not think the calculator would be that tolerant.

Jan 22, 2014 | Casio FX-9750GPlus Calculator

1 Answer

Polar rectangular

There is nothing to convert, because if T is a real number so is 40sin(4000T).
where abs() is the absolute value of it argument, and sign(sin(4000T)) is positive or negative.
So in (radius, angle) polar coordinates
r= 40 abs(sin(4000T)),
theta =(0, or PI), depending on sign(sin(4000T))

If you are trying to graph parametric functions, this calculator does not do graphs, and you need another function of T

Dec 26, 2013 | Casio FX991ES Scientific Calculator

1 Answer

Will not graph sin/cos/tan properly

Make sure you have the angular mode set to radians. In degree, the graph of sine(x) is nearly a straight line for small values of x.

May 08, 2012 | Texas Instruments TI-Nspire CAS Graphing...

1 Answer

When i try find graph for sin or cos x or even yan i get a always tright line

Set your calculator to RAD mode and then graphing functions.
See example for y=sin x


Mar 10, 2012 | Texas Instruments TI-84 Plus Calculator

2 Answers

Im trying to graph a parametric equation and whenever the equation has an exponent/power in it the calculator says Syn error so i know how to graph x=2 cos T, y=2 sin T and similar equations without a...

To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
As regards the cotangent, use the equivalent definition cot(X)=1/tan(X).

Jul 26, 2011 | Casio FX-9750GPlus Calculator

1 Answer

Hi, I'm trying to graph Y= sin(x) and Y=0.5x at the same time. I know that the 0.5x graph is supposed to look like a line going through the origin diagonally but when I press "ZoomTrig" to get...

Set Zoom to Standard Zoom Std or arrange windows limit as follows
As to Xmin and Xmax it depends on the angle unit. It would be best for you to use Radians. In that case you can set Xmin=-Pi and Xmax=Pi.

If you are using degrees as angle unit, you must set Xmin=-180 and Xmax=180 to get the sine but you will not be able to see much of the 0.5X function because it will shoot out off the graph.

My unsollicited advice is to use the radian as unit

Feb 21, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

My TI-89 Titanium won't graph sin, cos, or tan?

Set your calculator to RAD mode and then graphing functions.
See example for y=sin x


Nov 10, 2010 | Texas Instruments TI-89 Calculator

1 Answer

All trig-based graphs give me weird results on my TI-89 Titanium. Taking y=sin(x) for instance, I get a clean diagonal line through the point (0,0), almost resembling the graph y=x with window xmin = -10...

You have your angular mode set to degrees. Ten degrees is about 0.17 radians, and for small x: sin(x) is nearly equal to x. Thus, sin(x) from -10 to 10 is indeed nearly a straight diagonal line.

Press MODE, then scroll down to "Angle" to change the angular mode.

Jun 03, 2010 | Texas Instruments TI-89 Calculator

1 Answer

If i want to plot the graph on cy calculater,suddenly undefined error used to apper .how to fixed thin problem

Clear all ram
[2nd][MEM][7:Reset][1:All Ram].

To enter a function to graph ex: Y1=sin(x)
Press function key [Y=].
On first line where i says Y1= , enter the function [SIN][X,T,theta,n][)][ENTER]
Then press [GRAPH]
If graph is too flat adjust the window by pressing [WINDOW] and hoose different values for Xmin, Xmax, Ymin,Ymax.

Hope it helps.

Aug 22, 2009 | Texas Instruments TI-83 Plus Calculator

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