270N, it is a computational scale that can be calculated not only in general calculations other than addition and subtraction calculation of multiplication, division, square, three -tower, etc. But also for a wider area.
In addition to general calculations, it is an excellent plague that can calculate logarithm, high triangle function, cubic, square, etc. Calculation: General excerpt / proportional (index percentage), square / cubes, logarithm, high triangular function calculation.
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