| Exponential Integral and Related Functions | ||||
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The exponential integral is defined as  Some books define the exponential integral of order 1 as the exponential integral:  It has the following properties and special results:
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where |
is Euler's constant.
| Sine and Cosine Integrals | ||||||||||
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The sine and cosine integrals are defined as:
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They have the following properties and special results:
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where |
| Fresnel Integrals | ||||||||||||||
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The Fresnel sine and cosine integrals are defined as:
They have the following properties and special results:
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