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feat: add trigonometry functions #241

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Jul 26, 2022
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feat: add trigonometry functions #241

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132 changes: 132 additions & 0 deletions extensions/functions_arithmetic.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -260,6 +260,138 @@ scalar_functions:
required: false
- value: fp64
return: fp64
-
name: "cos"
description: "Get the cosine of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp64
return: fp64
-
name: "sin"
description: "Get the sine of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
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Same question as elsewhere, are these options in the order of most preferred to least preferred? Remember that an engine that support multiple option values on a non-specified value will pick them in the order they are declared.

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TIE_TO_EVEN a.k.a. "round to nearest" is the default mode used by glibc, and as such is probably what everyone is already implicitly doing, so I placed that first intentionally.

Side note; reading that description I guess my earlier assumptions that "even" means "even number" is wrong, and it actually refers to the least significant bit of the mantissa. I don't think that changes anything for us though.

required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp64
return: fp64
-
name: "tan"
description: "Get the tangent of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp64
return: fp64
-
name: "acos"
description: "Get the arccosine of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp64
return: fp64
-
name: "asin"
description: "Get the arcsine of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp64
return: fp64
-
name: "atan"
description: "Get the arctangent of a value in radians."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- value: fp64
return: fp64
-
name: "atan2"
description: "Get the arctangent of values given as x/y pairs."
impls:
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp32
- value: fp32
return: fp64
- args:
- name: rounding
options: [ TIE_TO_EVEN, TIE_AWAY_FROM_ZERO, TRUNCATE, CEILING, FLOOR ]
required: false
- name: on_domain_error
options: [ NAN, ERROR ]
required: false
- value: fp64
- value: fp64
return: fp64
aggregate_functions:
- name: "sum"
description: Sum a set of values. The sum of zero elements yields null.
Expand Down