Question about Casio Classpad 330 Graphic Calculator Classpad330
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?!!
You may need a new driver for the updated version. try an on line updated driver
Posted on Jul 29, 2013
tnx for the respond.
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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
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
If coefficients are complex you should expect some complex roots. Right?
If the coefficients are REAL then depending on the discriminant
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.
Posted on Jul 25, 2010
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
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
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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