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How do I add or subtract numbers in polar form or rectengular form

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k24674

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In rectangular coordinates you subtract or add the x together and the y- together. The operations have meaning only if you are calculating the mid-point of a segment or the coordinates of a point that divides a segment in a certain ratio, or the barycenter of a distribution of points.
As to the question concerning vectors in polar coordinates, I do not think there exits a meaningful instance where you have to add the radii AND the angles. Radii add or subtract if the points are collinear (same angle). Angles add or subtract if the point are on a circle (same radius)/

Posted on Oct 17, 2013

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If one or both numbers are in polar form, convert it/them to rectangular. Once both numbers are in rectangular form, simply add the two components separately: Add the two x components together, and add the two y components together.

If you're asking how to do this on a particular calculator, please specify the make and model.

Posted on Oct 15, 2013

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Anonymous

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SOURCE: how can i enter a polar form number with angle to

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

Posted on Jan 14, 2011

k24674

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SOURCE: i m usinf casio fx-300 Es calculator. is it

No you cannot. An ordered pair made up of a radius and an angle is a vector. And you do not add nor subtract vectors as you would scalar (non vector) values.

Posted on Sep 03, 2011

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How do i subtract two cells and progress down a row by a day so the next day the formula subtracts the current day and previous day?


You have to start the sequence with a slightly different formula because there is no preceding value for Monday.
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If their are two negative numbers in a multi step equations i add or subtract to undo


That depends on what you're trying to undo. If the last thing you did was add, then you subtract to undo. If the last thing you did was subtract, then you add to undo.

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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.

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Can we find complex matrices using 991-es?


No!! The only complex number operations you can perform are addition, subtraction, multiplication, and division and raise to an integer power with positive exponent. You can also get the Argument or the conjugate of a number, convert a complex number from rectangular to polar forms and vice versa.
As to matrices, it can only handle up to 3X3 dimension with real coefficients.

May 09, 2012 | Casio FX991ES Scientific Calculator

1 Answer

I m usinf casio fx-300 Es calculator. is it possible to do polar addition or subtraction without changing to rectangular form?


No you cannot. An ordered pair made up of a radius and an angle is a vector. And you do not add nor subtract vectors as you would scalar (non vector) values.

Aug 31, 2011 | Casio fx-300ES 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

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.

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How to add figures and then subtract from a larger number


use the + key after each number to add the total will appear on screen. When all numbers have been added, enter number to subtract and then press - key. The subtracted number will appear in read on the paper (if two color). and then press the star key to get total.

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How do u put this in polynomial standard form x^7-x+x^3-x^5+x^10


Sorry, blue, but you're wrong. Standard form means the exponents are arranged in decreasing order. So this one is
054ecfa.jpg
(Sorry, but you lose out on the 4 thumbs.)


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1 Answer

How do I add and subtract on this thing?


Hello,
I do know what calculator you have but on most calculators you have digit keys to key in numbers, operation keys (multiplication, division, addition, subtraction), function keys (log, exponential, %, square root, square or a power) and you have the = key to obtain the result of the calculation.

Press the [ON] button

To add 2 numbers, exemple 12 and 13
12 [+ key] 13 [= key]. Calculator displays 25, or 25.00 or 25.0000...

To subtract
13 [- key] 7 [=key] . Calculator displays 6 or 6.00, 6.0000....

To multiply
32 [x key] 5 [= key]. Calculator displays 160.

You may have memory keys, to store values. They may be labeled M to enter a number in memory, M+ to add a number to the one already in memory, M- to subtract from the number already in memory.

Hope it gets you started.

Oct 10, 2009 | Canon Office Equipment & Supplies

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