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To convert a complex number (not an equation) from rectangular coordinates to polar coordinates you do as follows
2+3[OPTN][ F3 (CLPX)][F1(i)][F6 >][F3> r ,theta][EXE]
The inverse of log functions are power functions.
Inv of ln is exponential (e^x)
Inv of log in base 10 is 10^(x)
A function and its inverse usually share the same physical key. One function is accessed directly, the other by using the SHIFT or 2ndF key.
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
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.
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.
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 [)] [=]
Hello, Press [MODE] and select [1:COMP] Press [SHIFT][MODE] and select [3:Deg]. You can also use rad if the angle you are given is in radians. To start the conversion Press [SHIFT][-] (Rec) screen displays Rec( Key in the radius r , ex: 3 screen displays Rec(3 Press [SHIFT][)] (,) to enter comma separator Rec(3, Key in the angle in degrees, ex: 57.3; screen displays Rec(3,57.3 Press ) to close parentheses; screen displays Rec(3, 57.3) Press [=] Screen displays Rec(3, 57.3) X=1.620720961 Y=2.524532346
X and Y are the values of the coordinates.
If angle is in radians, [SHIFT] [MODE][4:Rad] the command Rec(3, Pi) gives X=-3, Y=0 Hope it helps
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