Search found 30 matches

Here are two different key sequences for getting a decimal answer:

Key Sequence 1: "5", "/", "3", "Green Key (with a black diamond)", "ENTER"

...

Here are two different key sequences for getting a decimal answer:

Key Sequence 1: "6", "4", "/", "9", "Green Key (with a black diamond)", "EN ...

For example, to find the limit of x*y as x -> 0 and y -> 0, type

limit(limit(x*y, x, 0),y,0)

Your output should be 0.

The calculator is producing the correct output for the given input. That is,

5005*(.6)^2*(.8)^2 does equal 1153.152

and

(.2)^2*(.3)^2 does equal .0036

Unfortunately, the first result does ...

Integration isn't really my specialty, so someone with solid integration skills may be better able to respond to your post.

For now, here's what I've found:

The TI-89 evaluates definite integral ...

Below is code for a function that will return the coefficients of an arbitrary polynomial (given only the polynomial):

co(p)
Func

Local i,z

{}->z
1->i
p->z[1]

While string(d(p, ...

Well, my TI-89 has the same problem. The function you describe (let's call it f) is continuous, positive, and increasing on [0, 0.4]. Therefore, the correct answer should be positive and between .4*f( ...

If the degree of the polynomial is taken as a given, then the following input may be used to define a function that will return the coefficients:

Define co(p, n) = seq(d(p,x,i)/i!, i, n, 0, ...

If a program or a function is named x, then the integration function will throw the following error message if we try to integrate with respect to x:

"ERROR: Argument Error"

Ty ...

The function TIStat.binomCDF(n,p,low,up) may produce inaccurate answers when the parameter n is greater than a million.

I first noticed the error in the function during an in-class evaluation of t ...

This post would have been more appropriate in the math forum. Your calculator is giving the correct answer but in an inconvenient (inexact) form. Here are two approaches.
Approach 1: Replace 0.1 with ...

Well, if you're really interested in programming options, I would have to charge you, probably $150.00 or so, since writing the program I have in mind would take up about an hour of my time. We could ...

The above approach may not always work. In general, there are two cases to consider

Case 1: The integral assumes infinitely many distinct values over the integers.

Case 2: The integral assumes ...

I think I understand Idea

what you were asking: can the TI-89 be used to integrate certain functions that contain a variable restricted to the integers?

Surprisingly, the following input produ ...

I'm not sure that I understand your post, so I may very well miss the mark. Are you asking if there is a datatype analogous to "int" in Java/C++ for the TI-89?

If so, here's my response: ...