In dimension 0, the wave extends from the zero dimension to the first dimension.
            
            
| From 0D to 1D Wave | Projection of Wave | Amplitude of wave | 
|---|---|---|
| Dot is 0D space. Line is wave to 1D. | Projection of 1D wave should be dot(0D). | Wave has 1 amplitude. | 
In dimension 1, the wave extends from the fist dimension to the second dimension.
            
            
| From 1D to 2D Wave | Projection of Wave | Amplitude of wave | 
|---|---|---|
| line is 1D space. Curve is wave to 2D. Wave has a movement direction. | Projection of 2D wave should be line(1D). Also this line is wavelength of the wave. | Wave has 1 amplitude. | 
In dimension 2, the wave extends from the second dimension to the third dimension.
            
            
| From 2D to 3D Wave | Projection of Wave | Amplitude of wave | 
|---|---|---|
| Area is 2D space. Curve is wave to 3D. Wave has a movement direction. | Projection of 3D wave should be elips(2D). Elips has 2 dimension. First radius of elips is wavelength and the second one is other dimension of projection. | Wave has 1 amplitude. | 
In dimension 3, the wave extends from the third dimension to the fourth dimension.
            
            
| From 3D to 4D Wave | Projection of Wave | Amplitude of wave | 
|---|---|---|
| Volume is 3D space. Curves are wave to 4D. Wave has a movement direction. All amplitudes are same. | Projection of 4D wave should be ellipsoid(3D). Ellipsoid has 2 dimension. First radius of ellipsoid is wavelength and the second and third one are other dimensions of projection. | Wave has 1 amplitude. | 
In summary, wave in n dimensional space has n+1 dimension to be defined.
            
            
            Dimension 0 : Amplitude
            
            Dimension 1 : Wave Dimension_1 (wavelength: direction of movement)
            
            ....
            
            Dimension n : Wave Dimension_n