Can i trasform a complex double into euler representation

Hi to everyone , I'm working with a kalman filter for heading estimation . I'm using quaternion for estimating the orientation . At the end of the execution i have a complex double quaternion data and I can't to trasform into euler representation.

-14.6566171621163 + 0.495320247582976i

-0.459846284143683 + 0.100914051723435i

-6.39252310373873 - 0.0494395243698083i

-2.56597822306176 + 0.475119224468788i

Can someone help me ?

Answer 1

[Alan Stevens]

Can you use abs and angle?

>> a = -14.6566171621163 + 0.495320247582976i;
b = -0.459846284143683 + 0.100914051723435i;
c = -6.39252310373873 - 0.0494395243698083i;
d = -2.56597822306176 + 0.475119224468788i;
M = [a;b;c;d];
Mp = [abs(M) angle(M)]

Mp =

   14.6650    3.1078
    0.4708    2.9256
    6.3927   -3.1339
    2.6096    2.9585

[Andrea Gusmara]

what 's the meanig of the absolute in thsi representation?

[Alan Stevens]

abs(a+bi) = sqrt(a^2 + b^2) i.e it's the magnitude

a+bi = abs(a+bi)*exp(i*theta) where theta is angle(a+bi)