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How to covert from polar to Rectangular

Let use an example to convert from polar to rectangular. There may be other ways to do it on this particular calculator, but this should work on all calculators.

Let's use 20 degrees and 5 units for our polar.

Sin 20 degrees = y/5, cross multiplying we get y = 5 sin 20 degrees.

Similarly, Cos 20 degrees = x/5. Cross multiplying we get x = 5 cos 20 degrees.

Thus, I get (1.71, 4.70) as the rectangular coordinates of the point.

Good luck.


Nov 06, 2015 | Canon F-603 Calculator

1 Answer

Can my calculator be fixed if water was spilt on it ??

Turn it off and do not plug it in back in the AC . Get a screw driver disassemble it completely and dry it well. Cross fingers to work back again

Jun 24, 2014 | Sharp EL-1197P Calculator

1 Answer

Sharp el 738

If you are talking about the multiplication sign, look for a key marked with a cross. It should be in the same column as the other operations, between the subtraction (-) and the division keys.

Sep 29, 2013 | Sharp EL-738 Scientific Calculator

1 Answer

Trying to get cross product of two vectors...calculator will not store values entered when I edit the vectors...

All objects have limitations and this calculator has some of its own. What can we do about it?
Reopen one vector (or even the two vectors) you stored and edit it (them) then perform the vector product.

Sep 02, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

How change percentage (tax) rate on Casio-1100TV?

FINALLY figured out how to change the tax rate! Press AC. Press and hold the Rate Set (%) button UNTIL THE CURRENT TAX RATE IS DISPLAYED. Enter the new rate you want (such as 7.5). Press the Rate Set (%) button again.

Mar 05, 2010 | Casio Office Equipment & Supplies

1 Answer

To Guru K24674 Hello I have corrected the problem I had, you see the domain function that I have commented about does work within the calculator. You input the domain of the function after the Function...

Here is a solution.

Graph the function over the domain [-Pi,+Pi]
Then press the [SHIFT][MENU] (SETUP) and in option [Dual Screen] select [G to T] Graph to table. The screen will be spilt in two, but the Table part remains empty.
Press [SHIFT][F1] (TRACE), the cross hair appears on screen.
Move it around on the curve
If you press [EXE] at a cross hair location, the table records the X and Y value. On the following screen capture, the exponential function is graphed along with sin(X) and the table is populated by selected values of the exponential.


Now rate all the solutions I provided for you

Feb 25, 2010 | Casio CFX-9850G Plus Calculator

1 Answer

It crosses the horizontal asymptote when it should not

It is a spurious effect due to drawing connected plots. It joins the last point on one side of the asymptote to the first one on the other side. To deal with this spurious effect, one should
  1. draw dotted plots, or
  2. ignore the segment that crosses the asymptote.

Dec 13, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

Analytic geometry

assuming the question is what is the circle equation?
and if (-2,2) is the center of the circle
the equation should look like this: (x+2)^2+(Y-2)^2=R^2

And now only R is needed.

given 2x-5y+4=0 equation of line perpendicular

we can rearange the equation to be y=(2x+4)/5
from that we can see that the slope of the line is 2/5
And from the fact of perpendicular line we can say that the slope
of the radius line is -2/5.

The motivation now is to calculate the distance between the center of the circle to the cross point of the radius with the line perpendicular

For that we would calculate the radius line equation and compare it to the equation of line perpendicular

As mentioned earlier the slope of the radious line is -2/5.

So the equation is y=-2/5x+b and b can be calculated by using the center of the circle coordinates

2= - (2/5)*(-2)+b ------> b=2-4/5=1.2
radius equation is y=-(2/5)x+1.2

Now the cross point is calculated by comparing the equations:
-(2/5)x+1.2=(2x+4)/5 --> -2x+6=2x+4 --> 4x=2 --> x=1/2 --> y=1

So the cross point is (1/2,1).

The distance between the points is calculated by the following


Therefore the circle eq is (x+2)^2+(Y-2)^2=7.25

Oct 26, 2008 | Casio FX-115ES Scientific Calculator

1 Answer

What does a po1165 code in a 2001 hyundai santa fe mean

P1142 = Load Calculation Cross Check Lower Limit Exceeded

P1165 = Bank 1, Long Term Fuel Trim, Range 1 Rich Limit Exceede

need fix ya rate okay!!

Aug 27, 2008 | Hyundai Santa Fe Cars & Trucks

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