Wenchang position can also be determined according to the mantissa of the child's birth year. For example, the child was born in 2000, with a mantissa of 0 and Wenchang in the northwest; If the birth year mantissa is 1.

Wenchang is located in the north of the room; If the mantissa of birth year is 2, it is northeast; Mantissa 3, Wenchang is in the east; The mantissa of the child's birth year is 4, in the southeast. Note: the above content is feudal superstition, don't believe it.