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fix math function table
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‎src/UserGuide/Master/Table/SQL-Manual/Basis-Function.md‎

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### 5.2 Mathematical functions
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| Function Name | Description | Input | Output | Usage |
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| :------------------------------- | :----------------------------------------------------------- | :-------------------------- | :----------------- | :--------- |
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| sin | Sine | double, float, INT64, INT32 | double | sin(x) |
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| cos | Cosine | double, float, INT64, INT32 | double | cos(x) |
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| tan | Tangent | double, float, INT64, INT32 | double | tan(x) |
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| asin | Inverse Sine | double, float, INT64, INT32 | double | asin(x) |
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| acos | Inverse Cosine | double, float, INT64, INT32 | double | acos(x) |
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| atan | Inverse Tangent | double, float, INT64, INT32 | double | atan(x) |
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| sinh | Hyperbolic Sine | double, float, INT64, INT32 | double | sinh(x) |
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| cosh | Hyperbolic Cosine | double, float, INT64, INT32 | double | cosh(x) |
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| tanh | Hyperbolic Tangent | double, float, INT64, INT32 | double | tanh(x) |
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| degrees | Converts angle `x` in radians to degrees | double, float, INT64, INT32 | double | degrees(x) |
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| radians | Radian Conversion from Degrees | double, float, INT64, INT32 | double | radians(x) |
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| abs | Absolute Value | double, float, INT64, INT32 | Same as input type | abs(x) |
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| sign | Returns the sign of `x`: - If `x = 0`, returns `0` - If `x > 0`, returns `1` - If `x < 0`, returns `-1` For `double/float` inputs: - If `x = NaN`, returns `NaN` - If `x = +Infinity`, returns `1.0` - If `x = -Infinity`, returns `-1.0` | double, float, INT64, INT32 | Same as input type | sign(x) |
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| ceil | Rounds `x` up to the nearest integer | double, float, INT64, INT32 | double | ceil(x) |
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| floor | Rounds `x` down to the nearest integer | double, float, INT64, INT32 | double | floor(x) |
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| exp | Returns `e^x` (Euler's number raised to the power of `x`) | double, float, INT64, INT32 | double | exp(x) |
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| ln | Returns the natural logarithm of `x` | double, float, INT64, INT32 | double | ln(x) |
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| log10 | Returns the base 10 logarithm of `x` | double, float, INT64, INT32 | double | log10(x) |
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| round | Rounds `x` to the nearest integer | double, float, INT64, INT32 | double | round(x) |
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| Rounds `x` to `d` decimal places | double, float, INT64, INT32 | double | round(x, d) | |
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| sqrt | Returns the square root of `x`. | double, float, INT64, INT32 | double | sqrt(x) |
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| e | Returns Euler’s number `e`. | | double | e() |
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| pi | Pi (π) | | double | pi() |
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| Function Name | Description | Input | Output | Usage |
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|:--------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:----------------------------|:--------------------| :--------- |
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| sin | Sine | double, float, INT64, INT32 | double | sin(x) |
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| cos | Cosine | double, float, INT64, INT32 | double | cos(x) |
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| tan | Tangent | double, float, INT64, INT32 | double | tan(x) |
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| asin | Inverse Sine | double, float, INT64, INT32 | double | asin(x) |
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| acos | Inverse Cosine | double, float, INT64, INT32 | double | acos(x) |
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| atan | Inverse Tangent | double, float, INT64, INT32 | double | atan(x) |
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| sinh | Hyperbolic Sine | double, float, INT64, INT32 | double | sinh(x) |
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| cosh | Hyperbolic Cosine | double, float, INT64, INT32 | double | cosh(x) |
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| tanh | Hyperbolic Tangent | double, float, INT64, INT32 | double | tanh(x) |
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| degrees | Converts angle `x` in radians to degrees | double, float, INT64, INT32 | double | degrees(x) |
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| radians | Radian Conversion from Degrees | double, float, INT64, INT32 | double | radians(x) |
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| abs | Absolute Value | double, float, INT64, INT32 | Same as input type | abs(x) |
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| sign | Returns the sign of `x`: - If `x = 0`, returns `0` - If `x > 0`, returns `1` - If `x < 0`, returns `-1` For `double/float` inputs: - If `x = NaN`, returns `NaN` - If `x = +Infinity`, returns `1.0` - If `x = -Infinity`, returns `-1.0` | double, float, INT64, INT32 | Same as input type | sign(x) |
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| ceil | Rounds `x` up to the nearest integer | double, float, INT64, INT32 | double | ceil(x) |
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| floor | Rounds `x` down to the nearest integer | double, float, INT64, INT32 | double | floor(x) |
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| exp | Returns `e^x` (Euler's number raised to the power of `x`) | double, float, INT64, INT32 | double | exp(x) |
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| ln | Returns the natural logarithm of `x` | double, float, INT64, INT32 | double | ln(x) |
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| log10 | Returns the base 10 logarithm of `x` | double, float, INT64, INT32 | double | log10(x) |
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| round | Rounds `x` to the nearest integer | double, float, INT64, INT32 | double | round(x) |
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| round | Rounds `x` to `d` decimal places | double, float, INT64, INT32 | double | round(x, d)|
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| sqrt | Returns the square root of `x`. | double, float, INT64, INT32 | double | sqrt(x) |
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| e | Returns Euler’s number `e`. | | double | e() |
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| pi | Pi (π) | | double | pi() |
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## 6. Conditional Expressions

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