A single sawtooth, or an intermittently triggered sawtooth, is called a ramp waveform. It emulates the sound of multiple sawtooth oscillators using a single oscillator. Assuming a sawtooth waveform is a similar assumption to the ones above. The many ridges are sawtooth shaped and dissected by river valleys. The oscillation of the summed terms about the sawtooth is called the Gibbs phenomenon. It was initially designed to generate high voltage sawtooth signals at a relatively high frequency. A sawtooth wave pattern is often present. The early designs started with simple stickwork such as vertical sawtooth siding. It uses a transformer to create a sawtooth wave. A series of sawtooth waves were recorded on a Korg 700S synthesizer. It is also known as a dentated, sawtooth, or toothed blade. The superposition of several terms in the expansion of a sawtooth wave are shown underneath. The curculio beetle eats the edges of leaves, leaving sawtooth damage. The first polynomial is a sawtooth function.