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Number of square-triangle (square triangular number)
Number of square-triangle has the properties of a square and a triangular number.
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Calculate how much you spend on cigarettes
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Number 1
Your first \ u0105 numbers \ u0119
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Resistivity and conductivity
The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.