Mathematics is definitely a necessity in engineering, especially the fields of algebra, geometry, calculus, and statistics. Certain divisions of engineering rely on variations of mathematics, including combinations of arithmetic, algebra, geometry, calculus, differential equations, probability and statistics, complex analysis, and others. For example, civil and structural engineers use a great deal of linear algebra and work with matrices. Mechanical engineers use logs and exponents, calculus, differential equations, and probability and statistics. And a chemical engineer uses such mathematics as algebra and geometry, logs and exponents, integral calculus, and differential equations.