Question about Casio Classpad 330 Graphic Calculator Classpad330

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Complex Calculation Not Working

I've updated the os from 3.03 to 3.06 and since then,it does not perform complex calculations. After entering any Equation,it just shows the same Equation as the answer. Any idea?!!

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  • Casio Master
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You may need a new driver for the updated version. try an on line updated driver

Posted on Jul 29, 2013

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  • Farokh Kaardan Aug 01, 2013

    tnx for the respond.

  • Farokh Kaardan Aug 01, 2013

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  • Farokh Kaardan Aug 01, 2013

    I updated the os. to ver. 3.0.6.2000 and the problem is fixed.Do you any sites where I could download some Lang. packs,add-ins or e-activity or other stuff such as games?

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Posted on Jan 02, 2017

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SOURCE: In complex number mode, how to get out?

"Is there anything that I can do about this to stop my answers being complex numbers when solving cubic equations?"
You are making an assumption that is unwarranted.Namely that a cubic equation must necessarily have 3 real roots. This is not the case.

Let your equation be
4591a1b3e15019ae25ad5813d5744ca9.png
If coefficients are complex you should expect some complex roots. Right?
If the coefficients are REAL then depending on the discriminant
80efae5ccea2ac0702e1a9c3b25afd2b.png
you can have three cases
DELTA positive : three distinct real roots
DELTA=0 , the equation has a multiple root and all roots are REAL
DELTA negative: the equation has ONE real root and 2 complex roots that are complex conjugate of each other.

It suffices to look at the Tartaglia/Cardano expressions of the roots to know that more often than not there is going to be complex roots.

d64abc4.jpg










Posted on Jul 25, 2010

  • 7993 Answers

SOURCE: Edit Casio FX - 9860G SD have complex equations??

Thhe Casio FX-9860G SD can solve a polynomial equation of degree 2 or 3 with REAL coefficients. If the complex MODE is set to REAL it will find the real roots. If the complex mode is set to a+ib, it will find the real and complex roots.

Apparently it will take coefficients that are real, and will give a Ma Error if any coefficient is complex.

Addendum.
The calculator CANNOT solve equations with complex coefficient. YOU can however convert the system of linear equations with ccomplex coefficients ( of the type you show) as a system of 4 linear equations in 4 unknowns; Split x into a real and an imaginary part, split y into a real and an imaginary part. Substitute Real(x)+iIm(x) for variable x in the equations; substitute Real(y)+iIm(y) for y in the two equations; do the algebra. In each of the original equations split the Real and imaginary parts. You should be able to derive 4 linear equations in unknowns Real(x), Im(x), Real(y), and Im(y).
Use the linear equation solver to obtain the solutions. Recompose x=Real(x)+iIm(x), and y=Real(y)+iIm(y)

Alternatively, after you create the system of 4 linear equations you can use the matrix utility to find Real(x), Im(x), Real(y) and Im(y) and recompose the x and y.

Posted on Mar 18, 2012

  • 7993 Answers

SOURCE: Casio FX - 9860G SD have complex equations?? edit

The Casio FX-9860G SD can solve a polynomial equation of degree 2 or 3 with REAL coefficients. If the complex MODE is set to REAL it will find the real roots. If the complex mode is set to a+ib, it will find the real and complex roots.

Apparently it will take coefficients that are real, and will give a Ma Error if any coefficient is complex.

Addendum.
The calculator CANNOT solve equations with complex coefficient. YOU can however convert the system of linear equations with ccomplex coefficients ( of the type you show) as a system of 4 linear equations in 4 unknowns; Split x into a real and an imaginary part, split y into a real and an imaginary part. Substitute Real(x)+iIm(x) for variable x in the equations; substitute Real(y)+iIm(y) for y in the two equations; do the algebra. In each of the original equations split the Real and imaginary parts. You should be able to derive 4 linear equations in unknowns Real(x), Im(x), Real(y), and Im(y).
Use the linear equation solver to obtain the solutions. Recompose x=Real(x)+iIm(x), and y=Real(y)+iIm(y)

Posted on Mar 18, 2012

ali_rezaali7
  • 1 Answer

SOURCE: use of scientific calculator fx-82ES solving complex equation directly.How?

upgrade it into fx-570es http://www.youtube.com/watch?v=52YSOGcBMFI

Posted on Jun 11, 2012

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12_16_2011_4_42_46_am.jpg
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k24674_90.jpg

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MS-80TV AUTOMATICALLY ROUNDS UP TO 1 DECIMAL DIGIT


The [MODE] key can be used to select the modes described below.
Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.
1) Calculation Modes
Before performing a calculation, you first need to select the appropriate calculation mode.
COMP: Basic arithmetric calculations
(arithmetic operations, trigonometric functions, etc.)
COMPLEX: Complex number calculations
SD: Single-variable statistical calculations
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LR or REG: Paired-variable statistical calculations
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BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations
MAT: Matrix calculations (determinants, etc.)
VCT: Vector calculations
EQU: nth degree equations, simultaneous equations
2) Display Settings
Use these settings to control how calculation results are displayed.
Note that changing the Fix and Sci settings does not affect internal calculation results.
Norm: Exponential display format and cancels the currently configured Fix and Sci settings.
Fix: Specifies a fixed number of digits to the right of the decimal place.
Sci: Specifies a fixed number of significant digits.
3) Angle Unit Setting
(90°=?/2 radians=100 grads)
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Rad: Radians
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4) Engineering Mode
Use this mode when you want to input and perform calculations using engineering symbols.

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1+ 1 i [white right arrow under tan key to store] [ALPHA] H
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[Arg] [ALPHA] H [EXE] gives 45

Hope it helps.

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