1. A method for recognizing handwriting on a physical surface on the basis of three-dimensional signals originating from sensors of a terminal, the method being characterized in that the signals are obtained on the basis of at least 3 different types of sensors, and in that it comprises the following steps: sampling ( 201 ), according to 3 axes and over a sliding time window, of inertial signals originating from the sensors, fusing ( 203 ) the sampled signals into a 9-dimensional vector for each sampling period, converting ( 207 ) the fused signals into a sequence of characteristic 9-dimensional vectors, and, when a signal characteristic of an input start has been detected ( 208 ): storing ( 210 ) the sequence of characteristic vectors in a list of sequences of characteristic vectors, the preceding steps being repeated until the detection ( 209 ) of a signal characteristic of an input end, the method furthermore comprising, on detection of said signal characteristic of an input end, a step of: recognizing ( 211 ) a word on the basis of the list of sequences of characteristic vectors created between the detection of the input start and end signals.