a calculation method used to determine {the root of an involution}
a mathematical method of converting different units to the same unit
formulas for converting a single unit of measurement to different units
in the old Japanese arithmetic, a calculator called {'sangi'}
a mathematical question called 'mushikuizan'
a digital calculator that performs the four basic arithmetic operations and logic functions
a method of carrying out many operations simultaneously by parallel processing different units of operation within the arithmetic and control unit of a computer
in mathematics, a method used to approximate a value, called interpolation
a paper that shows an estimated sum beforehand