No because: As you know the figure of transformer magnetizing current goes to square wave related to degree of its core saturation. In ORTHOGONAL FUNCTIONS, ?i, defined in a?x ?b is called orthogonal (or unitary, if complex) if it satisfies the following condition: 
The Fourier series of an even function contain only cosine terms and may also include a DC component. Thus, the coefficients bi are zero. The Fourier series of an odd function contain only sine terms. The coefficients ai are all zero. The Fourier series of a function with half