Ключевые слова: allocation, aluminum, amplitude, arrow, background, black, cardiogram, cardiowave, chart, curve, curved, design, diagram, element, extremum, flat, forecast, frequency, function, geometry, graph, graphic, growth, harmonic, icon, impuls, infographic, information, isolated, line, mathematics, music, oscillations, parabola, signal, sinusoid, sound, symbol, technology, trigonometry, wave, web, wire,