Question about Casio FX-115ES Scientific Calculator

Hello,

This calculator cannot handle symbolic algebra.

Use the rules to simplify the expressions: Get rid of the parentheses using distributivity od multiplication with respect to addition; group similar terms (terms with x, terms without x).

Hope it helps.

Posted on Sep 27, 2009

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Posted on Jan 02, 2017

Quick-Start Guide
When you enter an expression into the calculator, the calculator will simplify the expression by expanding multiplication and combining like terms. At this point the calculator will attempt to factor the expression by dividing a G C F, and identifying a difference between two squares, or factorable trinomials. Use the following rules to enter expressions into the calculator.
Variables
Any lowercase letter may be used as a variable.
Exponents
Exponents are supported on variables using the ^ (caret) symbol. For example, to express x 2, enter x ^ 2. Note: exponents must be positive integers, no negatives, decimals, or variables. Exponents may not currently be placed on numbers, brackets, or parentheses.
Parentheses and Brackets
Parentheses ( ) and brackets [ ] may be used to group terms as in a standard expression.
Multiplication, Addition, and Subtraction
For addition and subtraction, use the standard + and - symbols respectively. For multiplication, use the * symbol. A * symbol is optional when multiplying a number by a variable. For instance: 2 * x can also be entered as 2x. Similarly, 2 * ( x + 5 ) can also be entered as 2 ( x + 5 ) ; 2 x * ( 5 ) can be entered as 2 x ( 5 ). The * is also optional when multiplying parentheses, example: ( x + 1 ) ( x - 1 ).
Order of Operations
The calculator follows the standard order of operations taught by most algebra books - Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. The only exception is that division is not currently supported; attempts to use the / symbol will result in an error.
Division, Square Root, Radi cals, Fractions
Division, square root, radi cals, and fractions are not supported at this time. A future release will add this functionality.

that's all I can say basically I learned it this way.

that's all I can say basically I learned it this way.

Jul 09, 2015 | Office Equipment & Supplies

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 | Office Equipment & Supplies

Terminology: Sorry I see no binomials in your expression. All you have is a sequence of arithmetic operations. That amounts to a monomial of degree 0 (namely a constant term).

Enter your expression on the calculator as you typed it in your question.**BTW, you could save yourself a lot of stress by simplifying expressions. They will look doable by hand.**

16*1/2=8

1-1/2=1/2

(1-1/2)*16=8

All that is left is

8*6*8-5*8=(48-5)*8=43*8=320+24=344

Enter your expression on the calculator as you typed it in your question.

16*1/2=8

1-1/2=1/2

(1-1/2)*16=8

All that is left is

8*6*8-5*8=(48-5)*8=43*8=320+24=344

Apr 15, 2014 | Texas Instruments TI-73 Explorer...

x=-2

If you're asking how to do this on a particular calculator, please specify the make and mode. If this is homework, be sure to show your work.

If you're asking how to do this on a particular calculator, please specify the make and mode. If this is homework, be sure to show your work.

Feb 08, 2014 | Office Equipment & Supplies

Simplifications of logarithmic expressions are based on the properties of logarithms

log(1)=0

log(a/b)=log(a)-log(b)

log(a^n)=n*log(a)

log_b(x)=log(x)/log(b)=ln(x)/ln(b)

As to exponentials you have

e^(0)=1

e^(-a)=1/(e^a)

(e^a)*(e^b)=e^(a+b)

(e^a)^n=e^(na)

That is the gist of it.

But I do not think that your calculator is able to handle any scientific calculations.

log(1)=0

log(a/b)=log(a)-log(b)

log(a^n)=n*log(a)

log_b(x)=log(x)/log(b)=ln(x)/ln(b)

As to exponentials you have

e^(0)=1

e^(-a)=1/(e^a)

(e^a)*(e^b)=e^(a+b)

(e^a)^n=e^(na)

That is the gist of it.

But I do not think that your calculator is able to handle any scientific calculations.

Sep 26, 2013 | Casio Model Dl-250la Heavy Duty Black/red...

The Calculator does not have a Computer Algebra System (CAS), and cannot perform algebraic operations with variables. However if you enter some expression with variables, it can solve for one unknown after it prompts you for the values of the others

Oct 05, 2012 | Casio Fx-991es Scientific Calculator

This calculator cannot do algebra ( manipulating expressions with letter symbols) . It does not have a CAS (computer Algebra System). All it can do is evaluate (find the numerical value of) expressions typed in. If it has the appropriate keys to enter variables such as A,B,C, or X and Y., and you entered an expression with variables it will use the numerical values stored in the variables. If you have not stored anything in a variable, it is given the value 0 by default.

Aug 25, 2011 | Texas Instruments TI-30 XIIS Calculator

The calculator does not have a CAS (Computer Algebra System). Therefore it cannot do symbolic algebra. It can only calculate numerical values.

You can enter algebraic expressions with symbols (X, variable), Y, A,B,C,D, and M but they will just be evaluated with the current values of A, B,C,D, Y, and M. If you use the SOLV program the unknown variable must be X.

You can enter algebraic expressions with symbols (X, variable), Y, A,B,C,D, and M but they will just be evaluated with the current values of A, B,C,D, Y, and M. If you use the SOLV program the unknown variable must be X.

Jun 21, 2010 | Casio FX-115ES Scientific Calculator

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hou to solve number long eq

currently taking math 070 in college and we are using problems like 10a-3a+14=2-6a+28 I am able to input it, but to have the calculator solve it is a different thing I continually get a syntax error.

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