Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Exponential integral

Index Exponential integral

In mathematics, the exponential integral Ei is a special function on the complex plane. [1]

29 relations: Abramowitz and Stegun, Analytic continuation, Argument of a function, Bickley–Naylor functions, Branch point, Cauchy principal value, Complex logarithm, Complex plane, Confluent hypergeometric function, Digital Library of Mathematical Functions, Divisor, Elementary function, Entire function, Euler–Mascheroni constant, Exponential function, Generating function, Goodwin–Staton integral, Groundwater, Heat transfer, Incomplete gamma function, Integral, List of integrals of exponential functions, Logarithmic integral function, Loss of significance, Neutron transport, Risch algorithm, Special functions, Srinivasa Ramanujan, Trigonometric integral.

Abramowitz and Stegun

Abramowitz and Stegun (AS) is the informal name of a mathematical reference work edited by Milton Abramowitz and Irene Stegun of the United States National Bureau of Standards (NBS), now the National Institute of Standards and Technology (NIST).

New!!: Exponential integral and Abramowitz and Stegun · See more »

Analytic continuation

In complex analysis, a branch of mathematics, analytic continuation is a technique to extend the domain of a given analytic function.

New!!: Exponential integral and Analytic continuation · See more »

Argument of a function

In mathematics, an argument of a function is a specific input in the function, also known as an independent variable.

New!!: Exponential integral and Argument of a function · See more »

Bickley–Naylor functions

In physics, engineering, and applied mathematics, the Bickley–Naylor functions are a sequence of special functions arising in formulas for thermal radiation intensities in hot enclosures.

New!!: Exponential integral and Bickley–Naylor functions · See more »

Branch point

In the mathematical field of complex analysis, a branch point of a multi-valued function (usually referred to as a "multifunction" in the context of complex analysis) is a point such that the function is discontinuous when going around an arbitrarily small circuit around this point.

New!!: Exponential integral and Branch point · See more »

Cauchy principal value

In mathematics, the Cauchy principal value, named after Augustin Louis Cauchy, is a method for assigning values to certain improper integrals which would otherwise be undefined.

New!!: Exponential integral and Cauchy principal value · See more »

Complex logarithm

In complex analysis, a complex logarithm of the non-zero complex number, denoted by, is defined to be any complex number for which.

New!!: Exponential integral and Complex logarithm · See more »

Complex plane

In mathematics, the complex plane or z-plane is a geometric representation of the complex numbers established by the real axis and the perpendicular imaginary axis.

New!!: Exponential integral and Complex plane · See more »

Confluent hypergeometric function

In mathematics, a confluent hypergeometric function is a solution of a confluent hypergeometric equation, which is a degenerate form of a hypergeometric differential equation where two of the three regular singularities merge into an irregular singularity.

New!!: Exponential integral and Confluent hypergeometric function · See more »

Digital Library of Mathematical Functions

The Digital Library of Mathematical Functions (DLMF) is an online project at the National Institute of Standards and Technology to develop a major resource of mathematical reference data for special functions and their applications.

New!!: Exponential integral and Digital Library of Mathematical Functions · See more »

Divisor

In mathematics, a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n. In this case, one also says that n is a multiple of m. An integer n is divisible by another integer m if m is a divisor of n; this implies dividing n by m leaves no remainder.

New!!: Exponential integral and Divisor · See more »

Elementary function

In mathematics, an elementary function is a function of one variable which is the composition of a finite number of arithmetic operations, exponentials, logarithms, constants, and solutions of algebraic equations (a generalization of ''n''th roots).

New!!: Exponential integral and Elementary function · See more »

Entire function

In complex analysis, an entire function, also called an integral function, is a complex-valued function that is holomorphic at all finite points over the whole complex plane.

New!!: Exponential integral and Entire function · See more »

Euler–Mascheroni constant

The Euler–Mascheroni constant (also called Euler's constant) is a mathematical constant recurring in analysis and number theory, usually denoted by the lowercase Greek letter gamma.

New!!: Exponential integral and Euler–Mascheroni constant · See more »

Exponential function

In mathematics, an exponential function is a function of the form in which the argument occurs as an exponent.

New!!: Exponential integral and Exponential function · See more »

Generating function

In mathematics, a generating function is a way of encoding an infinite sequence of numbers (an) by treating them as the coefficients of a power series.

New!!: Exponential integral and Generating function · See more »

Goodwin–Staton integral

In mathematics the Goodwin–Staton integral is defined as: It satisfies the following third-order nonlinear differential equation:.

New!!: Exponential integral and Goodwin–Staton integral · See more »

Groundwater

Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.

New!!: Exponential integral and Groundwater · See more »

Heat transfer

Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems.

New!!: Exponential integral and Heat transfer · See more »

Incomplete gamma function

In mathematics, the upper incomplete gamma function and lower incomplete gamma function are types of special functions, which arise as solutions to various mathematical problems such as certain integrals.

New!!: Exponential integral and Incomplete gamma function · See more »

Integral

In mathematics, an integral assigns numbers to functions in a way that can describe displacement, area, volume, and other concepts that arise by combining infinitesimal data.

New!!: Exponential integral and Integral · See more »

List of integrals of exponential functions

The following is a list of integrals of exponential functions.

New!!: Exponential integral and List of integrals of exponential functions · See more »

Logarithmic integral function

In mathematics, the logarithmic integral function or integral logarithm li(x) is a special function.

New!!: Exponential integral and Logarithmic integral function · See more »

Loss of significance

Loss of significance is an undesirable effect in calculations using finite-precision arithmetic such as floating-point arithmetic.

New!!: Exponential integral and Loss of significance · See more »

Neutron transport

Neutron transport is the study of the motions and interactions of neutrons with materials.

New!!: Exponential integral and Neutron transport · See more »

Risch algorithm

In symbolic computation (or computer algebra), at the intersection of mathematics and computer science, the Risch algorithm is an algorithm for indefinite integration.

New!!: Exponential integral and Risch algorithm · See more »

Special functions

Special functions are particular mathematical functions which have more or less established names and notations due to their importance in mathematical analysis, functional analysis, physics, or other applications.

New!!: Exponential integral and Special functions · See more »

Srinivasa Ramanujan

Srinivasa Ramanujan (22 December 188726 April 1920) was an Indian mathematician who lived during the British Rule in India. Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems considered to be unsolvable.

New!!: Exponential integral and Srinivasa Ramanujan · See more »

Trigonometric integral

In mathematics, the trigonometric integrals are a family of integrals involving trigonometric functions.

New!!: Exponential integral and Trigonometric integral · See more »

Redirects here:

Ei(x), Ein function, Expint, Inegral exponent, Well function.

References

[1] https://en.wikipedia.org/wiki/Exponential_integral

OutgoingIncoming
Hey! We are on Facebook now! »