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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| #[derive(Debug, Clone, Copy)] | ||
| pub struct Tensor { | ||
| data: f64, | ||
| pub grad: f64, | ||
| pub shape: [usize; 1], | ||
| } | ||
|
|
||
| // display tensor | ||
| impl std::fmt::Display for Tensor { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { | ||
| write!(f, "{}, grad: {}", self.data, self.grad) | ||
| } | ||
| } | ||
|
|
||
| impl Tensor { | ||
| pub fn new(data: f64) -> Self { | ||
| Tensor { | ||
| data, | ||
| grad: 0.0, | ||
| shape: [0], | ||
| } | ||
| } | ||
|
|
||
| pub fn powf(&self, exp: Tensor) -> Self { | ||
| Tensor::new(self.data.powf(exp.data)) | ||
| } | ||
|
|
||
| pub fn relu(&self) -> Self { | ||
| Tensor::new(self.data.max(0.0)) | ||
| } | ||
|
|
||
| pub fn backward(&mut self) { | ||
| Tensor::new(self.grad); | ||
| } | ||
|
|
||
| pub fn grad(&mut self) { | ||
| self.grad = 1.; | ||
| } | ||
| } | ||
|
|
||
| impl std::ops::Add for Tensor { | ||
| type Output = Self; | ||
|
|
||
| fn add(self, other: Self) -> Self { | ||
| Tensor::new(self.data + other.data) | ||
| } | ||
| } | ||
|
|
||
| impl std::ops::Sub for Tensor { | ||
| type Output = Self; | ||
|
|
||
| fn sub(self, other: Self) -> Self { | ||
| Tensor::new(self.data - other.data) | ||
| } | ||
| } | ||
|
|
||
| impl std::ops::Mul for Tensor { | ||
| type Output = Self; | ||
|
|
||
| fn mul(self, other: Self) -> Self { | ||
| Tensor::new(self.data * other.data) | ||
| } | ||
| } | ||
|
|
||
| impl std::ops::Div for Tensor { | ||
| type Output = Self; | ||
|
|
||
| fn div(self, other: Self) -> Self { | ||
| Tensor::new(self.data / other.data) | ||
| } | ||
| } | ||
|
|
||
| impl std::ops::Neg for Tensor { | ||
| type Output = Self; | ||
|
|
||
| fn neg(self) -> Self { | ||
| Tensor::new(-self.data) | ||
| } | ||
| } | ||
|
|
||
| impl PartialEq for Tensor { | ||
| fn eq(&self, other: &Self) -> bool { | ||
| self.data == other.data | ||
| } | ||
| } | ||
|
|
||
| impl PartialOrd for Tensor { | ||
| fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { | ||
| self.data.partial_cmp(&other.data) | ||
| } | ||
| } |
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