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Mathematical Functions

Trigonometric functions

Trigonometric functions in SQL are mathematical operations used to calculate the trigonometric ratios of angles. These functions include SIN (sine), COS (cosine), TAN (tangent). They accept angles in radians and return corresponding trigonometric values, facilitating calculations involving angles and geometry within SQL queries.

 

SIN: The SQL SIN function calculates the sine of an angle in radians.

Consider a table named Angles with a column Angle storing angle values in radians. We want to calculate the sine of each angle.

SELECT Angle, SIN(Angle) AS SineValue FROM Angles;

In this example, the SIN function is applied to the Angle column, computing the sine of each angle stored in radians. The result set will include the Angle column along with the calculated sine values in the SineValue column.

 

COS: The SQL COS function calculates the cosine of an angle in radians.

Consider a table named Angles with a column Angle storing angle values in radians. We want to calculate the cosine of each angle.

SELECT Angle, COS(Angle) AS CosineValue FROM Angles;

In this example, the COS function is applied to the Angle column, computing the cosine of each angle stored in radians. The result set will include the Angle column along with the calculated cosine values in the CosineValue column.

 

TAN: The SQL TAN function calculates the tangent of an angle in radians.

Consider a table named Angles with a column Angle storing angle values in radians. We want to calculate the tangent of each angle.

SELECT Angle, TAN(Angle) AS TangentValue FROM Angles;

In this example, the TAN function is applied to the Angle column, computing the tangent of each angle stored in radians. The result set will include the Angle column along with the calculated tangent values in the TangentValue column.


Logarithmic functions

Logarithmic functions in SQL are mathematical operations used to calculate logarithms of numbers. These functions include LOG (natural logarithm), LOG10 (base-10 logarithm), and EXP (exponential function). They enable computations involving exponential growth or decay, such as in financial modeling or scientific calculations, within SQL queries.

 

LOG: The SQL LOG function is used to compute the natural logarithm (base e) of a given number.

Consider a table named Numbers with a column Value. We want to calculate the natural logarithm of each value.

SELECT Value, LOG(Value) AS NaturalLogarithm FROM Numbers;

In this example, the LOG function is applied to the Value column, computing the natural logarithm of each value. The result set will include the Value column along with the calculated natural logarithm in the NaturalLogarithm column.

 

LOG10: The SQL LOG10 function computes the base-10 logarithm of a given number.

Consider a table named Data with a column Number. We want to calculate the base-10 logarithm of each number.

SELECT Number, LOG10(Number) AS Base10Logarithm FROM Data;

In this example, the LOG10 function is applied to the Number column, computing the base-10 logarithm of each value. The result set will include the Number column along with the calculated base-10 logarithm in the Base10Logarithm column.

 

EXP: The SQL EXP function computes the exponential value of a given number.

Consider a table named Exponents with a column Value. We want to calculate the exponential value of each number.

SELECT Value, EXP(Value) AS ExponentialValue FROM Exponents;

In this example, the EXP function is applied to the Value column, computing the exponential value of each number. The result set will include the Value column along with the calculated exponential value in the ExponentialValue column.

 

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