The first objection, made by Lagrange and Laplace in 1808, was to Fourier's expansions of functions as trigonometrical series, what we now call Fourier series.
Ang unang pagtutol, ginawa sa pamamagitan ng Lagrange at Laplace sa 1808, ay sa Fourier's expansions ng function bilang trigonometrical serye, ano na namin ngayon sa tawag Fourier series.