Question about Casio FX-9750GPlus Calculator

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Turn calculator ON.

If you see no icons, press [MENU] key.

Use Arrows to focus on RUN and press [EXE]

Press [OPTN]

Among the TABS that appear at the bottom of screen you have CPLX.

Press [F3] to activate it.

The menu TABS that are displayed allow you manipulate complex numbers:

F1 :i imaginary unit i

F2: Abs takes the absolute value of a complex number.

F3:Arg, gives the argument (angle the complex number makes with the positive X-Axis)

F4: Conj calculates the Conjugate of a number.

F5: ReP extracts the Real part

F6:Imp extracts the Imaginary part.

For other operations use the operation keys [Plus] [MINUS] [*][/] [X^2] [Square root]. Be careful using the universal power key or the xroot key as it may lead to a Memory error.

Posted on Oct 09, 2010

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Posted on Jan 02, 2017

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The 30XIIs doesn't deal with complex numbers directly. You can separate the real and imaginary parts and deal with them separately.

Feb 03, 2014 | Texas Instruments TI-30 XIIS Calculator

The 30Xa doesn't work with complex numbers. You'll have to work with the real and imaginary components separately, just like they taught you in class.

Feb 03, 2014 | Texas Instruments TI-30XA Calculator

The summation function only works in the real mode, not the complex mode. You'll find that the same limitation applies to many other functions, such as the integration.

See page E-42 of this manual for the functions that are allowable in complex mode.

See page E-42 of this manual for the functions that are allowable in complex mode.

Apr 19, 2013 | Casio FX-115ES Scientific Calculator

This calculator can do simply algebra with complex numbers-addition, subtractions, multiplications, extract the imaginary and real parts- but not much else. Sorry, calculating exponentials or complex numbers is not within its capabilities.

Aug 03, 2011 | Casio FX-115ES Scientific Calculator

Real Numbers are just numbers like:
1
12.38
-0.8625
3/4
?2
1998
In fact:

Real does not mean they are in the real world They are**not** called "Real" because they show the value of something **real**.

In mathematics we like our numbers pure, if we write 0.5 we mean**exactly** half, but in the real world half may not be *exact* (try cutting an apple exactly in half).

Nearly any number you can think of is a Real Number

Real Numbers include:
Whole Numbers (like 1,2,3,4, etc)
Rational Numbers (like 3/4, 0.125, 0.333..., 1.1, etc )
Irrational Numbers (like **?**, ?3, etc )

Real Numbers can also be positive, negative or zero.

So ... what is NOT a Real Number?
?-1 (the square root of minus 1) is not a Real Number, it is an Imaginary Number
Infinity is not a Real Number
And there are also some special numbers that mathematicians play with that are not Real Numbers

Why are they called "Real" Numbers?

**Because they are not Imaginary Numbers.**

The Real Numbers did not have a name before Imaginary Numbers
were thought of. They got called "Real" because they were not Imaginary.
That is the actual answer!

The Real Number Line
The Real Number Line is like an actual geometric line.

A point is chosen on the line to be the **"origin"**, points to the right will be positive, and points to the left will be negative.

A distance is chosen to be "1", and the whole numbers can then be
marked off: {1,2,3,...), and also in the negative direction: {-1,-2,-3,
...}

Any point on the line is a Real Number:

- The numbers could be rational (like 20/9)
- or irrational (like ?)

Real does not mean they are in the real world They are

In mathematics we like our numbers pure, if we write 0.5 we mean

Jul 10, 2011 | Computers & Internet

Have
you checked the calculator's manual to see if the calculator is able
(natively) to handle functions of a complex argument. It is able to
handle simple algebra with complex numbers, powers, roots, solving a polynomial equation.

For this calculator, the hyperbolic functions must have a real argument otherwise you get a error. But just to make sure, try the exponential function with i (imaginary unit) as argument. If it comes back with a domain error you have your answer.

For this calculator, the hyperbolic functions must have a real argument otherwise you get a error. But just to make sure, try the exponential function with i (imaginary unit) as argument. If it comes back with a domain error you have your answer.

Apr 06, 2011 | Texas Instruments TI-89 Calculator

5 2nd [MATH] F5 MORE F4 ( 0 , 1 ) ENTER

2nd [MATH] brings up the Math menu. F5 goes to the Misc menu, and F4 is the x-th-root function. ( 0 , 1 ) puts in the complex number i: that is a real component of 0 and an imaginary component of 1.

2nd [MATH] brings up the Math menu. F5 goes to the Misc menu, and F4 is the x-th-root function. ( 0 , 1 ) puts in the complex number i: that is a real component of 0 and an imaginary component of 1.

Nov 17, 2010 | Texas Instruments TI-86 Calculator

Press MODE and select one of the two complex modes.

Mar 30, 2009 | Texas Instruments TI-84 Plus Calculator

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