CALCULUS GLOSSARY
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Title  Description  

Octant  As we have four quadrants in the rectangular plane, we have eight Octants in rectangular space. In three dimensions the three axes divide space into eight sections, each termed an Octant. 

Odd Function  An Odd Function adheres to this property: f(x) = f(x). The standard sine function is an odd function. 

Order, Matrix  The Order of a Matrix is its size, expressed as "rows by columns."  
Ordered Triple  Three coordinates are required to label a point in space, typically (x, y, z). 

Ordinary Differential Equation  A Differential Equation with no partial derivatives is considered an Ordinary Differential Equation. 
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