Question about Texas Instruments TI-86 Calculator
Posted by Anonymous on
You can type in an x-variable by pressing the x-var key.
For other graph types, the variables r, theta, t, can be enter by pressing the appropriate function key. from the graph equation entry screen.
Posted on Aug 28, 2014
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Posted on Jan 02, 2017
I am not quite sure what you are asking...
(1) if asking for graphing y= -2/3x+2, then press [diamond] [F1: Y=] type in .2/3x +2, see graph by [diamond][graph]
(2) if asking for graphing y= -2/3x+a, where a=3x, then first archive a=3x in Home screen by [home], type 3x [sto] a, then go back to y= menu, and type -2/3x+a in Y1
(3) if asking for graphing an equation that is dependent on 2 variables at the same time, use x-y-z axis (aka, change mode to graphing 3-D by [mode]graph [5:3D]) then enter desired equation in y= menu using Z function in terms of x and y aka z(x,y)= ...)
Posted on Jul 23, 2008
That means one (or more) of the variables you have in your function is not defined. Check to make sure you didn't misspell any variable name. Also, check to make sure you didn't run two variable names together. "ab" is the variable ab, not a times b.
Posted on Feb 18, 2010
The Transfrm application for dynamic geometry is probably active in memory. You must purge it from RAM
Posted on May 15, 2010
SOURCE: I try to graph an
If you want to graph the absolute value of a function, feed the function to the absolute value ie graph y= abs(f(x)). The calculator will take care of it. See screen captures where I draw the function y1=x^3-5x^2-3 and y2='x^3-5x^2-3'. On the first graph the function is represented and on the second the function and its absolute value.
The calculator knows how to calculate the absolute value of an expression. The name of the command is abs(
Posted on May 14, 2011
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