Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

When I attempt to graph a function and it's inverse in parametric mode

Ex:

X1: Tsquared + T

Y1: T

X2: T

Y2: Tsquared + T

The calc only graphs both equations in Quadrant I. They both should be parabolas

See carefully captured images below

Parametric Graphing of Inverse Functions - parametric-graphing-inverse-functions-vmeepxeodbkuphgqq1hkgvwl-1-6.pngg-inverse-functions-vmeepxeodbkuphgqq1hkgvwl-1-6.png" alt="parametric-graphing-inverse-functions-vmeepxeodbkuphgqq1hkgvwl-1-6.png" class="h_mi" />

Posted on Mar 26, 2016

If your looking to make a parabola out of it add

X3:T²+T

Y3:-T

X4:-T

Y4:T²+T

Those functions are not parabolas. since T² cannot be negative since negative times negative = positive. (unless it's an imaginary number, but thats a different story)

Posted on Feb 08, 2008

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Posted on Jan 02, 2017

I suspect that you are confusing things a bit.

The inverse sine, called the arcsine is a function defined in the closed interval [-1,1]. And so is the inverse cosine. Any value outside this interval will give you a non-real result (meaning a complex one).

There are no limitations on the domain of definition of the inverse hyperbolic sine or sinh^-1

If your input value is**allowed to be complex**, the arcsine function gives a complex value. See the screen capture

The inverse sine, called the arcsine is a function defined in the closed interval [-1,1]. And so is the inverse cosine. Any value outside this interval will give you a non-real result (meaning a complex one).

There are no limitations on the domain of definition of the inverse hyperbolic sine or sinh^-1

If your input value is

Mar 17, 2014 | Texas Instruments TI 89 Titanium Graphing...

In parametric functions, the variables x and y are both functions of an independent variable, **called t,** and that usually represents the time. The default variable in parametric functions must be called t. You can enter the limits you want. However if you type in 2 Pi it will be converted on the entry line to 6.28. The default tstep is 0.13 which is about pi/24. I fail to see what the commotion is about.

In this representation of the witch of Agnesi, the variable t is between 0 and 4Pi, and the step tstep is 0.13, a little less that pi/24

Reset your calculator and restart

In this representation of the witch of Agnesi, the variable t is between 0 and 4Pi, and the step tstep is 0.13, a little less that pi/24

Reset your calculator and restart

Mar 14, 2014 | Texas Instruments TI-Nspire Graphing...

T is the default (independent) variable name in parametric function graphing. Change the graphing mode to function y=.

Jun 13, 2012 | Casio FX-9750GPlus Calculator

When you push the button [Y=] to open the function editor you will see Y1=,Y2= etc. That is the default behavior. By default the graph type is FUNCTION (y=f((x). However there are other graph types, for instance PARAM, POLAR, and SEQUENCE.

For Parametric graphs, you need two functions x as a function of t and y as a function of t. In this case, when you open the function editor, you will see pairs of functions x1(t), y1(t), x2(t), y2(t), etc. Both x and y functions of the pair must be supplied.

So if your x= function is not showing, then you must open the MODE screen, and scroll down to reach the 4th line that says FUNC, PAR, POL, SEQ. Highlight PAR and press ENTER.** You do that only if you want to graph parametric functions.**

For Parametric graphs, you need two functions x as a function of t and y as a function of t. In this case, when you open the function editor, you will see pairs of functions x1(t), y1(t), x2(t), y2(t), etc. Both x and y functions of the pair must be supplied.

So if your x= function is not showing, then you must open the MODE screen, and scroll down to reach the 4th line that says FUNC, PAR, POL, SEQ. Highlight PAR and press ENTER.

Nov 04, 2011 | Texas Instruments TI-84 Plus Silver...

When drawing function graphs of type Y1=, the name of the independent variable should be X

For polar graphs r=.., the independent variable is theta, while for parametric graphs it is T

To enter the default independent variable, press the key marked [X,Theta, T] . It will type in the correct name.

For polar graphs r=.., the independent variable is theta, while for parametric graphs it is T

To enter the default independent variable, press the key marked [X,Theta, T] . It will type in the correct name.

Sep 18, 2011 | Casio FX-9750GPlus Calculator

The argument error must have something to do with the parametric functions you are drawing. I do not think anybody would know where to look unless you give us the functions.

As to the range of the T-variable, you can set it by pressing [SHIFT][F3] to open the (V-Window) configuration screen. It starts showing Xmin, Xmax. etc. To get to the T range, use down arrow (about 7 times).

As to the range of the T-variable, you can set it by pressing [SHIFT][F3] to open the (V-Window) configuration screen. It starts showing Xmin, Xmax. etc. To get to the T range, use down arrow (about 7 times).

Dec 06, 2010 | Casio FX-9750GPlus Calculator

At first, you have to use** t** symbol for parametric functions when you operating with TI 89 Titanium. In your case you must input your relations as **x1=3cos(t)** and **y1=2sin(2t).** Then graphing it. See captured image

Sep 21, 2010 | Texas Instruments TI-89 Calculator

Hello,

A previous problem on statistics has turned the statistical graphs ON and that interferes with the graphing of functions.

TurnOff the STATPLOTS by pressing [2nd][STAT PLOT][4:PlotsOFF]. Command echoes on the home screen. Press ENTER. I was going to add to reset all ram just in case.

Make sure you are drawing the right type of graph. To check that press [MODE], scroll down to 4th line to highlight Func and press ENTER, if you are drawing y=f(x) functions. The others are PARametric, POLar, SEQuence.

Hope it helps.

A previous problem on statistics has turned the statistical graphs ON and that interferes with the graphing of functions.

TurnOff the STATPLOTS by pressing [2nd][STAT PLOT][4:PlotsOFF]. Command echoes on the home screen. Press ENTER. I was going to add to reset all ram just in case.

Make sure you are drawing the right type of graph. To check that press [MODE], scroll down to 4th line to highlight Func and press ENTER, if you are drawing y=f(x) functions. The others are PARametric, POLar, SEQuence.

Hope it helps.

Nov 05, 2009 | Texas Instruments TI-84 Plus Silver...

Hello,

In parametric mode you are not drawing one function, but two functions X1(T) and Y1(T). If you use the DrawInv( command either on X1(T) or Y1(T) you get a syntax error.

However if you are drawing functions in Funct mode you can draw the inverse of the function that has been graphed.

Here is how you do it.

[2nd][Draw][8: DrawInv] [ENTER]

The command appears on the home screen, and you need to tell it the function it will act on. To do so press

[VARS] --> Y-Vars [1:Function]

and select the function you want, say Y1, if Y1 has already been defined.

DrawInv Y1 [ENTER]

Both Y1 and its inverse will be drawn.

Hope it helps.

In parametric mode you are not drawing one function, but two functions X1(T) and Y1(T). If you use the DrawInv( command either on X1(T) or Y1(T) you get a syntax error.

However if you are drawing functions in Funct mode you can draw the inverse of the function that has been graphed.

Here is how you do it.

[2nd][Draw][8: DrawInv] [ENTER]

The command appears on the home screen, and you need to tell it the function it will act on. To do so press

[VARS] --> Y-Vars [1:Function]

and select the function you want, say Y1, if Y1 has already been defined.

DrawInv Y1 [ENTER]

Both Y1 and its inverse will be drawn.

Hope it helps.

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