| 摘要 |
<p>The linear calculator solves the problem of actual illustration of the multiplication table for numbers up to ten since it provides a systematic and structured entering of calculations of the aforementioned multiplication table. It consists of a longitudinal panel (1) with groove (2), a linear scale (3) showing numbers zero, ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety and one hundred, a scale (4) from one hundred squares as well as panels (5) with indicators (6) which are by their shape, size and colour contrast adapted to the multiplication table of individual numbers of up to ten panels (1) and the linear scale (3) as well as scale (4) on it. The panels (5) adapted to the multiplication table of individual numbers up to ten regarding the provided calculation from the multiplication table are entered one after another into the groove (2) on the calculator and with the help of the linear scale (3), scale (4) and one hundred squares as well as counting indicators (6) on panels (5) the result of the selected calculation can be obtained.</p> |
