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Method of Calculation
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Method of Calculation

The measurements generated for columns two through four presented in the following tables are derived from the millimeter column. To calculate the inches for the second column, the millimeters were multiplied by .03937 and divided by twenty. A pica point is equal to 1/72 of inch or .013888 inch. The figures were calculated by multiplying by millimeters by 2.83482 and dividing by twenty. The Fournier point is equal to .013728 of an English inch while the didot point is equal to .0148 of an inch; millimeters were multiplied by 2.6601 and divided by twenty. A consistently high degree of mathematical accuracy for the calculations has been assured by using "1-2-3," Release 2.01 from the Lotus Development Corporation. To check these calculations, note that 508 millimeters per twenty lines equals 1.0000 inches or 72.00 pica points.