Question about Sharp EL-520X Advanced Scientific Calculator White BP package of 5

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How to work with complex number

How to change 8+j6 to polar form?

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  • kakima Dec 06, 2012

    I should also add that you can see instructions and examples for coordinate conversions in section 13 of the manual:http://files.sharpusa.com/Downloads/ForH...

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Press 8 2ndF , 6 2ndF ->r(theta) and see r on the display.
Press 2ndF <-,-> and see theta on the display.

Press 2ndF <-.-> to switch between r and theta.

Posted on Dec 06, 2012

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Posted on Jan 02, 2017

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Complex matrix


Is it complex or matrix? You can have only one mode at a time.What kind of equations? The solve function uses real-valued equations.
Complex numbers: You can add, subtract, multiply and divide. You can convert a number from rectangular to polar forms and vice-versa; you can calculate the absolute value of a complex number, or a conjugate.
All the operations are done in the Mode CMPLX.

Feb 04, 2014 | Casio FX991MS Scientific Calculator

1 Answer

Polar to rectangular conversion working incorrectly


At first, Rect and Polar are a display-format instructions, not a conversion functions. Polar instruction displays complex value in rectangular form a + bi. The complex value can have any complex form. However, an r*exp(i*theta) causes an eror in Degree angle mode according to the TI avowal. See captured images below


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9_6_2012_10_17_20_pm.jpg


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Sep 06, 2012 | Texas Instruments TI-84 Plus Calculator

1 Answer

I am trying to enter a exp to an complex number and am getting a domain error. How do I clear it up


Domain error occurs if you using polar form of complex numbers in Degree or Gradian angle units.
You have to set up Radian mode and then input complex value. See captured images


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Jan 23, 2012 | Texas Instruments TI-89 Calculator

1 Answer

Conversion of polar to rectangular form and vice versa


Conversion of polar form to rectangular:
  • Switch to CMPLX mode: [MODE] [2]
  • Enter complex number in polar form, e.g. r = 3, θ = 42°: 3 [SHFT] [(-)] 42 [=]
  • Switch to rectangular view: [SHFT] [2] [4]
Conversion of rectangular to polar:
  • Switch to CMPLX mode: [MODE] [2]
  • Enter complex number in rectangular form, e.g. real part = 2, imag part = 3: 2 [+] 5 [ENG] [=]
  • Switch to polar view: [SHFT] [2] [3]

Jan 12, 2011 | Casio FX991ES Scientific Calculator

2 Answers

How do I convert between the rectangular and polar form of a number with imaginary values? i.e. I want to take the number a+bi and convert it to polar D&lt;(angle) and vice versa.


Use the >Rec and >Pol commands. They're in the Complex number menu, accessible through 2nd [CPLX] MORE.

[CPLX] is the shifted function of the 9 key.

Dec 10, 2010 | Texas Instruments TI-86 Calculator

1 Answer

Converting between Forms When working with phasors it is often necessary to convert between rectangular and polar form. To convert from rectangular form to polar form: M = sqrt{A^2 + B^2} f =...


You can switch the display mode for complex numbers by pressing SHIFT MODE down 3 and picking one. This will display the current result in the selected mode.

You can also override the current display mode and specify the format. Add these keystrokes at the end of a calculation: SHIFT 2 then 3 for polar or 4 for rectangular.

Nov 24, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

Where is the i button on the TI 86?


There isn't one. If you're entering a complex number in rectangular form, separate the real and imaginary parts with a comma (left of the 4). If you're entering a complex number in polar form, separate the magnitude and the angle with the angle symbol (2nd comma).

Sep 14, 2010 | Texas Instruments TI-86 Calculator

4 Answers

How can i enter a polar form number with angle to convert into a rect form


how can i enter a polar form number with angle to convert into a complex numbe(a+bi)

Apr 28, 2010 | Casio Algebra FX 2.0 Calculator

1 Answer

Hello - i have a casiofx250 calculator and i urgently need to convert from rectanular to polar - how do i do this ? raj


This is an example, plug in your problem.
Convert 12 - 42j to polar form (r ∠ q).
For CASIO calculator...
Keystrokes Display 12 12 rp.gif 12 42 42 plum.gif -42 eq.gif 43.68065934 (= r) xy.gif -74.0546041 (= θ) Therefore,
Complex number in rectangular form: 12 - 42j Same complex number in polar form: 43.7 ∠ -74°

Feb 29, 2008 | Computers & Internet

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