Question about Casio FX-115ES Scientific Calculator

# Can you show how to convert pola to rectangular o

Can you show how to convert polar to rectangular and rectangular to polar on a casio fx-991es

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### k24674

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• Casio Master

Hello,
To avoid errors make sure that the angle unit is THE ONE required by your problem. To verify or to change the angle unit press [SIFT][MODE] and select [3: Deg] for degrees, [4:Rad] for radians, or [5:Grad] for grads.

Convert from rectangular to polar

[SHIFT][+] (Pol) . Screen displays Pol(
You enter the X-coordinate, and the Y coordinate separated by a comma, then you close the parenthesis and press [=].

Exemple: Polar coordinate of the point (1,1)
Pol( 1, 1) gives
r=1.414213562 (square root of 2)
θ=45

Here is how you enter it
Press [SHIFT][MODE][2:LineIO]
[SHIFT][POL] 1 [SHIF] [,] 1 [)] [=]

The screen displays
Pol(1,1)
r= 1.414213562
θ= 45

Convert from polar to rectangular coordinates

Exemple: Recatngular coordinates of (r=3, θ=60°)
[SHIFT][Rec] 3 [SHIFT][,] 60 [ ) ] [=]
The screen displays
Rec(3,60)
X= 1.5
Y= 2.598076211

Hope it helps.

Posted on Nov 15, 2009

Testimonial: "thanx that was very helpful"

• venkatesan.v.k Jun 06, 2012

can u xplain more about rec conversion plzzzzzzzzzzz

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### Is there a verify mode on the CASIO fx-991es plus calculator?

You should try to explore the calculator to find its capabilities. You can also read the manual. Everything is in it.
Press the Mode button, then the down arrow key. On the second page of the mode list you find 2:Verif

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### How to use pol ?

The Pol function converts coordinates from rectangular to polar. Pol(x,y) converts the rectangular coordinates (x,y) to polar coordinates (r, theta).

For examples and instructions, see page E-37 of the manual and example #036 in the Appendix.

Dec 07, 2012 | Casio FX-115ES Scientific Calculator

### Casio fx 82 au plus convert polar to rectangular

To convert from Polar to Rectangular
PRESS [SHIFT and -Rec] then enter the coordinate and angle

e.g. [SHIFT and -Recl]
Rec(15,0)=
r=15
0=0

Jun 18, 2011 | Casio FX-115ES Scientific Calculator

### Convert from polar to rectangular & vise versa using calculator with RCL&POL GIVE EXAMPLE JUST PROCEDURE THANKS 9

Examples #036 and #037 in the Appendix illustrate how to convert between polar and rectangular coordinates. If you need the appendix and/or the manual, you can download them from
http://support.casio.com/manualfile.php?rgn=1&cid=004001004

May 22, 2011 | Casio FX-115ES Scientific Calculator

### 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.

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### What calculator would you recommend for polar and rectangular formula's?

Are you serious?
No calculator purchase should be solely based on such a trivial matter.
But if you are looking for a very good scientific calculator, I would suggest the new Write View EL-W506/W516/W546 calculators by Sharp, or the FX-115ES/991ES Natural Display by Casio.

With these calculators you can see what you enter displayed as in textbooks. Naturally, they all do coordinates conversions from Polar to Rectangular and from Rectangular to Polar.

Jun 17, 2010 | Casio FX-115ES Scientific Calculator

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