Complex sugars or starches are called polysaccharides.

The endoplasmic reticulum

To get the complex conjugate, change the sign in front of the imaginary part. Thus, the complex conjugate of -4 + 5i is -4 - 5i.

0 + 5i

Its complex conjugate is 0 - 5i

The term "complex carbohydrates" refers to polysaccharides. This is as opposed to simple carbohydrates, or sugars (monosaccharides and disaccharides). Some nutritionists, however, use the term complex carbohydrate to refer to any sort of digestible saccharide present in a whole food where fiber, vitamins and minerals are also found.