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Casio fx-300ES Calculator Questions & Answers
How to put geometric sequence in this calculator?
Are you trying to find a particular term in the geometric sequence?
For example, in the geometric sequence 2,4,8,16 to find the 15th term we would use the formula a sub n = a sub 1 x r ^(n-1), where a sub n is the nth term of the geometric sequence
a sub 1 is the 1st term of the geometric sequence
r is common ratio between successive terms
n is the term you are looking for
In our example, a sub 1 is 2, r is 2 and n is 15.
a sub n = a sub 1 x r ^(n-1)
a sub 15 = 2x 2(15-1)
a sub 15 = 2 ^ 15
a sub 15 = 32,768
On your calculator, you use the key to the right of x^2 to do x to the nth power.
Good luck.
Paul
Geometric Sequences and Series
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CASIO fx-82MS:
How can I erase
Hey I had the Similar Problem, which got solved as I happened to refer to the Quick Reference specified inside the Calculator cover (FX-82 ES). Press the SHIFT and CLR buttons for a while and then select 2(Mode) and then press the ' = ' button. The ENG sign disappears!!! Well Hope it works for you and others too :)
I CANT GET MYCALCULATOR TO DO FRACTIONS CAN YOU
To configure the calculator to do fractions, set the Input/Output mode to MathIO.Press [SHIFT][MODE] to open (SetUp) then select [1:MathIO]. After you set it to MathIO, pressing the fraction key will display a fraction template where you can enter numerator and denominator as you would by hand (horizontal fraction bar). Also, the calculator will display results as fractions and radicals whenever possible.To perform arithmetic operations on fractions use the regular operation keys (x, +, -, /). The calculator will perform the operations and display the results as fractions (whenever possible).
Casio fx-300ES Calculator inputting fractions
The little L is the way to separate the numerator from the denominator. That is the old way of writing fractions. If you want the stacked representation, switch the display mode to MathIO.
Press Shift Mode to get to Settings, then enter the number corresponding to MathIO.
How to get it out of Sci math
Hi,
To get out of the default MthIO press [SHIFT][MODE][2:LineIO]
To get out of Sci display format, press [SHIFT][MODE][6:Fix] followed by a number between 0 and 9, that will set the number of decimal digits.
Hope it helps.
Thank you for rating this solution.
How to factor a polynomial equation on casio fx-300es?
Hello,
The Casio FX-300ES does not handle symbolic algebra. So it cannot factor a general polynomial expression. The methods can be found in any book on Algebra.
However if you are interested in approximate factorization of quadratic and cubic polynomials, you can use the calculator to do that. It can solve aX^3 +bX^2+cX+d =0 and the quadratic equations.
If you want to factor a cubic polynomial P3(X) = aX^3+bX^2+cX+d , you write the corresponding cubic equation as aX^3+bX^2+cX=d =0 , then you divide all terms of the equation by a to obtain
X^3+(b/a)X^2+(c/a)X+(d/a)=0.
You use the calculator to solve (approximately) this equation.
Suppose you find the 3 roots X1,X2,and X3. Then the polynomial X^3+(b/a)X^2+(c/a)X+(d/a) can be cast in the factored form (X-X1)(X-X2)(X-X3) and the original polynomial P3(X) can be written as
P3(X) = a*(X-X1)(X-X2)(X-X3)
You can handle the quadratic polynomial the same way.
P2(X) =a*(X-X1)(X-X2) where X1, X2 are the two real roots
Hope it helps.
I have to multiply by
To insert pi on this calculator press [shift] [x10x] . (you can see the pi symbol above and to the side of this button).
Casio fx-300 ES how do I use the significant figures
That is not something that can be done by calculator. Do all the operations to get a result. Look at the number of significant figures in each number in the chain of operations. Keep the least number of significant figures. The result of a calculation cannot be more precise than the least precise of its components.
How am i supposed to solve a quadratic equation ?
Use the quadratic formula, or factor the quadratic polynomial. Once factored into a product of two first degree binomials, the roots are obtained by setting (in TURN) each binomial factor equal to zero.
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