Mathematics

Items

• decimal number system

  Number system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. It also requires a dot (decimal point) to represent decimal fractions.
• decreasing function

  A real function f is decreasing in or on an interval i if f(x1) ≥ f(x2) whenever x1 and x2 are in i with x1 < x2. Also, f is strictly decreasing if f(x1) > f(x2) whenever x1 < x2.
• decreasing sequence

  A sequence a1, a2, a3, … is said to be decreasing if ai ≥ ai+1 for all i, and strictly decreasing if ai > ai + 1 for all i.
• deduction

  Deduction is a logical reasoning process where specific conclusions are drawn from general principles or premises.
• definition

  A definition is a concise and precise statement that describes the meaning, nature, or essential qualities of a concept, term, or object. It serves to provide clarity and understanding by explaining the distinctive features or boundaries of the subject being defined.
• definite integral

  Is a mathematical object that can be interpreted as an area or a generalization of area.
• degree

  Degrees are a unit of angle measure. A full circle is divided into 360 degrees. For example, a right angle is 90 degrees. A degree has the symbol ° and so ninety degrees would have written 90°.
• degree measure

  A degree (in full, a degree of arc, arc degree, or arc degree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees. It is not an si unit, as the si unit of angular measure is the radian, but it is mentioned in the si brochure as an accepted unit.
• denominator

  The number below the line in a vulgar fraction / a divisor
• density

  Density is the mass of an object divided by its volume
• density function

  In probability theory, a probability density function (PDF), or density of a continuous random variable, is a function, whose value at any given sample (or point) in the sample space (the set of possible values taken by the random variable) can be interpreted as providing a relative likelihood that the value of the.
• dependent variable

  Dependent variable is a variable whose value depends upon independent variable s. The dependent variable is what is being measured in an experiment or evaluated in a mathematical equation.
• derivative

  Derivative is a way to show rate of change: that is, the amount by which a function is changing at one given point. For functions that act on the real numbers, it is the slope of the tangent line at a point on a graph
• derivative function

  The derivative of a function y = f(x) of a variable x is a measure of the rate at which the value y of the function changes with respect to the change of the variable x. It is called the derivative of f with respect to x.
• determinant

  Determinant is a value that can be computed from the elements of a square matrix.
• deviation

  A measure that is used to find the difference between the observed value and the expected value of a variable.
• diagonal entries

  These are the specific elements of a square matrix that are located along its main diagonal.
• differentiability

  A differentiable function of one real variable is a function whose derivative exists at each point in its domain.
• differential equation

  Differential equation A differential equation is a mathematical equation that relates some function with its derivatives. In pure mathematics, differential equations are studied from several different perspectives, mostly concerned with their solutions—the set of functions that satisfy the equation. More items.
• directly proportional

  Two quantities are said to be in direct proportion if an increase in one also leads to an increase in the other quantity, and vice-versa. For example, if a ∝ b, this implies if 'a' increases, 'b' will also increase, and if 'a' decreases, 'b' will also decrease.
• disc method

  In other words (less colourful words), the disk method is the process of finding the volume of an object by dividing that object into many small cylinders / disks and then adding the volumes of these small disks together. The radius of the cylinder is given by a function f(x) and the height is the change in x.
• discontinuity

  A break in or lack of continuity.
• disjoint sets

  In mathematics, two sets are said to be disjoint sets if they have no element in common.
• displacement

  Displacement of an object with respect to an initial point is defined as the vector distance from the initial point to the final point.
• distance formula

  The distance formula is used to determine the distance, d, between two points. The distance formula is derived by creating a triangle and using the Pythagorean theorem to find the length of the hypotenuse. The hypotenuse of the triangle is the distance between the two points