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FixedPoint

Struct FixedPoint 

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pub struct FixedPoint { /* private fields */ }
Expand description

A fixed-point number stored as a raw Q-format integer.

Profile-dependent size:

  • embedded (Q64.64): 16 bytes (i128)
  • balanced (Q128.128): 32 bytes (I256)
  • scientific (Q256.256): 64 bytes (I512)

Arithmetic is performed directly on the raw Q-format values. Transcendentals route through FASC at tier N+1.

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impl FixedPoint

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pub const ZERO: Self

Zero constant.

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pub fn one() -> Self

One (1.0) in Q-format.

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pub fn from_raw(raw: BinaryStorage) -> Self

Create from raw Q-format storage.

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pub fn raw(self) -> BinaryStorage

Access the raw Q-format storage.

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pub fn from_int(v: i32) -> Self

Create from an integer value.

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pub fn to_int(self) -> i32

Extract the integer part (floor toward negative infinity).

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pub fn abs(self) -> Self

Absolute value.

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pub fn is_negative(self) -> bool

Check if negative.

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pub fn is_zero(self) -> bool

Check if zero.

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pub fn from_f32(v: f32) -> Self

Create from an f32 value.

Uses IEEE 754 bit extraction for exact conversion — no float arithmetic is performed internally. Panics on NaN or infinity.

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pub fn from_f64(v: f64) -> Self

Create from an f64 value.

Uses IEEE 754 bit extraction for exact conversion — no float arithmetic is performed internally. Panics on NaN or infinity.

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pub fn to_f32(self) -> f32

Convert to f32 (lossy — for display/interop only).

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pub fn to_f64(self) -> f64

Convert to f64 (lossy — for display/interop only).

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pub fn from_str(s: &str) -> Self

Parse from a decimal string (e.g., “3.14159”).

Routes through FASC with forced binary mode for correct conversion.

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pub fn exp(self) -> Self

e^x

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pub fn ln(self) -> Self

ln(x), x > 0

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pub fn sqrt(self) -> Self

sqrt(x), x >= 0

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pub fn sin(self) -> Self

sin(x)

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pub fn cos(self) -> Self

cos(x)

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pub fn tan(self) -> Self

tan(x)

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pub fn atan(self) -> Self

atan(x)

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pub fn asin(self) -> Self

asin(x), |x| <= 1

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pub fn acos(self) -> Self

acos(x), |x| <= 1

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pub fn sinh(self) -> Self

sinh(x)

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pub fn cosh(self) -> Self

cosh(x)

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pub fn tanh(self) -> Self

tanh(x)

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pub fn asinh(self) -> Self

asinh(x)

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pub fn acosh(self) -> Self

acosh(x), x >= 1

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pub fn atanh(self) -> Self

atanh(x), |x| < 1

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pub fn pow(self, exponent: Self) -> Self

x^y = exp(y * ln(x))

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pub fn atan2(self, x: Self) -> Self

atan2(self=y, x) — angle of point (x, y)

Trait Implementations§

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impl Add for FixedPoint

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type Output = FixedPoint

The resulting type after applying the + operator.
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fn add(self, rhs: Self) -> Self

Performs the + operation. Read more
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impl AddAssign for FixedPoint

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fn add_assign(&mut self, rhs: Self)

Performs the += operation. Read more
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impl Clone for FixedPoint

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fn clone(&self) -> FixedPoint

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for FixedPoint

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

Formats the value using the given formatter. Read more
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impl Default for FixedPoint

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for FixedPoint

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

Formats the value using the given formatter. Read more
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impl Div for FixedPoint

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type Output = FixedPoint

The resulting type after applying the / operator.
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fn div(self, rhs: Self) -> Self

Performs the / operation. Read more
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impl DivAssign for FixedPoint

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fn div_assign(&mut self, rhs: Self)

Performs the /= operation. Read more
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impl Mul for FixedPoint

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type Output = FixedPoint

The resulting type after applying the * operator.
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fn mul(self, rhs: Self) -> Self

Performs the * operation. Read more
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impl MulAssign for FixedPoint

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fn mul_assign(&mut self, rhs: Self)

Performs the *= operation. Read more
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impl Neg for FixedPoint

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type Output = FixedPoint

The resulting type after applying the - operator.
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fn neg(self) -> Self

Performs the unary - operation. Read more
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impl Ord for FixedPoint

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for FixedPoint

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fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for FixedPoint

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fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Sub for FixedPoint

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type Output = FixedPoint

The resulting type after applying the - operator.
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fn sub(self, rhs: Self) -> Self

Performs the - operation. Read more
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impl SubAssign for FixedPoint

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fn sub_assign(&mut self, rhs: Self)

Performs the -= operation. Read more
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impl Copy for FixedPoint

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impl Eq for FixedPoint

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.