(-1)^(1/3)
i^2
x = linspace(1-1.e-5,1+1.e5);
plot(x, (1-x).^3)
x = linspace(1-1.e-5,1+1.e-5);
plot(x, (1-x).^3)
hold on
plot(x, 1 - 3*x + 3*x.^2 - x.^3, 'r')
hold off
(1 + 2*i)/(4 + 3*i)
z = 4 + 3*i
z = 4 + 3i
real(z)
imag(z)
abs(z)
conj(z)
help conj
compass(z)
grid on
w = complex(1,2)
hold on
compass(w, 'r')
compass(z + w, 'g')
compass(z - w, 'k')
cart2polar(4,3)
help cart2polar
help polar2cart
help cart2pol
cart2pol(4,3)
[theta, rho] = cart2pol(4,3)
theta_in_gradi = theta * 180/pi
help pol2cart
[a, b] = plo2cart(theta, rho)
[a, b] = pol2cart(theta, rho)
angle(z)
theta
0/0
1/0
-1/0
Inf/Inf
a
A = 5
a
A
a2 = 7
2a = 8
esempio
% esempio
# esempio
quit
# Octave 3.6.4, Wed Oct 16 17:01:29 2013 W. Europe Daylight Time <unknown@achilles-TOSH>
