Question about Texas Instruments TI-89 Calculator

For expand, you don't need to put ",x" at the end.

just do: expand( (x-5)^3 )

and you should get: x^3-15x^2+75x-125

Posted on May 21, 2008

If a is the name of a PIC, GDB, MAC, FIG, etc., a+1 is invalid. Use a different variable name in the expression or delete the variable.

Apr 22, 2015 | Texas Instruments TI-89 Graphing Calc...

Let us backtrack so as to better jump.

An algebraic expression may contain one or several**algebraic terms**, separated by a plus sign or a or a minus and a sign.

Each algebraic term is the product of a constant coefficient and a power of some variable, or the powers of several variables.

Example of an algebraic term 3(x^2)(y^6)....

**If the exponents of the various powers are positive integers, the term is called a monomial. **In short no square roots, or fractionary powers of the variables appear in monomials. Thus 2/x, 3SQRT(x), or 1/x^5 are not monomials.

Finally, a polynomial is an**algebraic expression** made up of one or more monomials.

Example P(X)=(1/3)X^7-(SQRT(5)*X^4+ 16X-25 is a polynomial of degree 7 in the indeterminate/variable X

Q(X,Y)= 3(X^3)*Y^2 + 4X-5Y+10 is a polynomial of degree 5 in the variables X and Y.

An algebraic expression may contain one or several

Each algebraic term is the product of a constant coefficient and a power of some variable, or the powers of several variables.

Example of an algebraic term 3(x^2)(y^6)....

Finally, a polynomial is an

Example P(X)=(1/3)X^7-(SQRT(5)*X^4+ 16X-25 is a polynomial of degree 7 in the indeterminate/variable X

Q(X,Y)= 3(X^3)*Y^2 + 4X-5Y+10 is a polynomial of degree 5 in the variables X and Y.

Oct 01, 2014 | Calculators

This calculator cannot manipulate algebraic expressions. You can enter an expression and generate a table of values. You can enter an equation in one unknown and solve it. But you cannot do algebra.

You would need a calculator that has a Computer Algebra System (Algebra FX 2.0, or ClassPad 300/330). Sorry.

You would need a calculator that has a Computer Algebra System (Algebra FX 2.0, or ClassPad 300/330). Sorry.

May 10, 2012 | Casio FX-115ES Scientific Calculator

Mar 21, 2012 | Texas Instruments TI-89 Calculator

The syntax for the evaluation of definite integrals (integrals with boundary limits) is as shown on the screen capture below.

$ (function , variable , lower bound, upper bound)

By default the name of the dummy variable is x. If you use another name, the variable must appear as an argument of the function, and as variable.

$ (function , variable , lower bound, upper bound)

By default the name of the dummy variable is x. If you use another name, the variable must appear as an argument of the function, and as variable.

Mar 13, 2012 | Casio Algebra FX 2.0 Calculator

it sounds like your hitting the secondary key button and just putting in letters you should use x on variables button substitute other letters your using for x (sorry i couldn't make this much clearer)

Jan 17, 2011 | Texas Instruments TI-89 Calculator

You need the TINspire CAS (Computer Algebra System) to do symbolic manipulations. The Blue TINspire (with TI 84 keyboard) can only perform numerical computations.

If you use variables, the calculator will assign the numerical value stored in the variable.

If you use variables, the calculator will assign the numerical value stored in the variable.

Aug 17, 2010 | Texas Instruments TI-Nspire Graphic...

With the ALPHA keyboard, Type in the NewProb command and press ]ENTER] It resets the one-letter variables to their default status.

Alternatively, you can use the CATALOG of commands to launch the NewProb command.

Another way is

In HOME directory, press the [2nd][F1] to activate the F6 key. In the menu list, press 1:Clear a-z and ]ENTER].

If you have to use the variable x multiplied by a function (sin, cos, tan, log, etc) do not used implied multiplication: enter the [*] explicitly.

Alternatively, you can use the CATALOG of commands to launch the NewProb command.

Another way is

In HOME directory, press the [2nd][F1] to activate the F6 key. In the menu list, press 1:Clear a-z and ]ENTER].

If you have to use the variable x multiplied by a function (sin, cos, tan, log, etc) do not used implied multiplication: enter the [*] explicitly.

Apr 14, 2010 | Texas Instruments TI-89 Calculator

Type it like this: solve( equation1 and equation2 and moreEquations, {list of variables to solve for})

Put all of your equations right after the opening parenthesis separated by the word*and*, then a comma, then within curly braces each variable you want to solve for each separated by a comma.

Put all of your equations right after the opening parenthesis separated by the word

Apr 26, 2008 | Texas Instruments TI-89 Calculator

try clearing the memory of all the variables..that might solve the problem
mohit

Sep 23, 2007 | Texas Instruments TI-89 Calculator

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