what have i done

src/lib/csound-reference/mathematical-operations-trigonometric-functions.ts

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+import type { CsoundReference } from './types'
+
+// Mathematical Operations:Trigonometric Functions
+export const mathematicalOperationsTrigonometricFunctions: CsoundReference[] = [
+{
+  name: 'cos',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the cosine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/cos.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'cosh',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the hyperbolic cosine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/cosh.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'cosinv',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the arccosine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/cosinv.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'signum',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the signum of _x_ returning -1, 0 or 1.',
+  example: '--8<-- "examples/signum.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'sin',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the sine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/sin.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'sinh',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the hyperbolic sine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/sinh.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+{
+  name: 'sininv',
+  type: 'opcode',
+  category: 'Mathematical Operations:Trigonometric Functions',
+  description: 'Returns the arcsine of _x_ (_x_ in radians).',
+  example: '--8<-- "examples/sininv.csd"',
+  seeAlso: ['Trigonometric Functions']
+},
+]