Struct ImSinFn 

pub struct ImSinFn;

Returns the sine of a complex number.

Evaluates complex sine and returns the result as complex text.

Remarks

• Input is coerced to complex-number text before parsing.
• Uses hyperbolic components for the imaginary part.
• Invalid complex text returns #NUM!.

Examples

title: "Sine of zero"
formula: "=IMSIN(\"0\")"
expected: "0"

title: "Sine on imaginary axis"
formula: "=IMSIN(\"i\")"
expected: "1.1752011936438014i"

related:
  - IMCOS
  - IMEXP
faq:
  - q: "Why can `IMSIN` return non-zero imaginary output for real-looking formulas?"
    a: "For complex inputs `a+bi`, sine uses hyperbolic terms (`cosh`, `sinh`), so imaginary components are expected."

Trait Implementations

impl Debug for ImSinFn

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Function for ImSinFn

[formualizer-docgen:schema:start] Name: IMSIN Type: ImSinFn Min args: 1 Max args: 1 Variadic: false Signature: IMSIN(arg1: any@scalar) Arg schema: arg1{kinds=any,required=true,shape=scalar,by_ref=false,coercion=None,max=None,repeating=None,default=false} Caps: PURE [formualizer-docgen:schema:end]

fn caps(&self) -> FnCaps

Capability flags for this function

fn name(&self) -> &'static str

fn min_args(&self) -> usize

fn arg_schema(&self) -> &'static [ArgSchema]

fn eval<'a, 'b, 'c>( &self, args: &'c [ArgumentHandle<'a, 'b>], _ctx: &dyn FunctionContext<'b>, ) -> Result<CalcValue<'b>, ExcelError>

The unified evaluation path.

fn namespace(&self) -> &'static str

fn variadic(&self) -> bool

fn volatile(&self) -> bool

fn aliases(&self) -> &'static [&'static str]

Optional list of additional alias names (case-insensitive) that should resolve to this function. Default: empty slice. Implementors can override to expose legacy names. Returned slice must have ’static lifetime (typically a static array reference).

fn function_salt(&self) -> u64

fn eval_reference<'a, 'b, 'c>( &self, _args: &'c [ArgumentHandle<'a, 'b>], _ctx: &dyn FunctionContext<'b>, ) -> Option<Result<ReferenceType, ExcelError>>

Optional reference result path. Only called by the interpreter/engine when the callsite expects a reference (e.g., range combinators, by-ref argument positions, or spill sources).

fn dispatch<'a, 'b, 'c>( &self, args: &'c [ArgumentHandle<'a, 'b>], ctx: &dyn FunctionContext<'b>, ) -> Result<CalcValue<'b>, ExcelError>

Dispatch to the unified evaluation path with automatic argument validation.