释义 |
fou·ri·er series \|fu̇rē|ā-\ noun Usage: usually capitalized F Etymology: after Baron Jean Baptiste Joseph Fourier died 1830 mathematics : an infinite series of the form ao/2+a1cosx+b1sinx+a2cos2x+b2sin2x+… that may be used to approximate a function or to fit a given set of data (as periodic data) |