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This program calculates the stiffness and sound velocity of the material using the three resonant frequencies of the violin material.

This is a short video introducing a program that calculates the required content of each ingredient based on the ratio of the varnish recipe

This program calculates the density of the material by inputting the weight and size of each part for the main material of the violin.

This program calculates the amount of each component based on the mixing ratio of each component when manufacturing violin varnish.