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Definition | |||||
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| z1 - z2 | = | (4 + 2i) - (-1 + 4i) | |||||||||||||||||||
| = | (4 - (-1)) + (2 - 4)i | ||||||||||||||||||||
| = | 5 - 2i. | ||||||||||||||||||||
| According to the definition of the difference of two complex numbers z1=x1+iy1 and z2=x2+iy2 , the number z1-z2 corresponds to the point (x1-x2)+i(y1-y2) . It also corresponds to a vector with those coordinates as its components. Hence z1- z2 may be obtained vectorially as shown. |
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