TY - CHAP M1 - Book, Section TI - Basic Mathematics and Related Skills A1 - Hall, Susan J. PY - 2023 T2 - Basic Biomechanics, 9e AB - Negative numbers are preceded by a minus sign. Although the physical quantities used in biomechanics do not have values that are less than zero in magnitude, the minus sign is often used to indicate the direction opposite the direction regarded as positive. Therefore, it is important to recall the following rules regarding arithmetic operations involving negative numbers: SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=1199270326 ER -