Hello everyone! I need to use grapher for calculating impedances in electric circuits. So complex numbers in polar form are MUCH easier for me. Could you please advise, whether it is possible to make Grapher to calculate complex number exactly in polar form and also give a result in polar form and how to enter data in polar form? for example something like that (r < 90) + (r < 120) (sorry, can not print special symbol for degrees) and get a result in a form (r < x) . Because now I have to convert polar form to rectangular (x+yi), perform calculations and then convert back to polar form, which is a bit annoying.
My guess would be that since the equation palette doesn't have the symbols you need, Grapher probably can't do it. But my knowledge of this app is very limited.
Hello !
Using Grapher 2.1 ( OS X 10.6.4 French) :
1) You may enter complex expressions and perform calculations using both format a+ib or rho
e^îalpha (radian only) but all results are formatted a+ib.
abs(constant complex expression) to get the result modulus,
arg(constant complex expression) for the result argument (radian).
2) angle unit choice in Grapher preferences works for trigonometric functions only, if done before opening the working window. If your choice is degrees :
2(cos30+isin30) degrees here, but in 2e^i30 it is 30 radians !
Very good documentation through links provided by « baltwo ».
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Grapher complex numbers Polar Form
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