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Fixed a reference in README #54

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Nov 21, 2019
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Fixed a reference in README #54

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6 changes: 3 additions & 3 deletions README.md
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Expand Up @@ -20,8 +20,8 @@ The following table lists mathematical operations for a bijector and the corresp
| Operation | Method | Automatic |
|:------------------------------------:|:-----------------:|:-----------:|
| `b ↦ b⁻¹` | `inv(b)` | ✓ |
| `(b₁, b₂) ↦ (b₁ ∘ b₂)` | `b1 ∘ b2` | ✓ |
| `(b₁, b₂) ↦ [b₁, b₂]` | `stack(b1, b2)` | ✓ |
| `(b₁, b₂) ↦ (b₁ ∘ b₂)` | `b₁ ∘ b₂` | ✓ |
| `(b₁, b₂) ↦ [b₁, b₂]` | `stack(b₁, b₂)` | ✓ |
| `x ↦ b(x)` | `b(x)` | × |
| `y ↦ b⁻¹(y)` | `inv(b)(y)` | × |
| `x ↦ log｜det J(b, x)｜` | `logabsdetjac(b, x)` | AD |
Expand All @@ -31,7 +31,7 @@ The following table lists mathematical operations for a bijector and the corresp
| `p ↦ b` such that `support(b_* p) = ℝᵈ` | `bijector(p)` | ✓ |
| `(x ∼ p, b(x), log｜det J(b, x)｜, log q(y))` | `forward(q)` | ✓ |

In this table, `b` denotes a `Bijector`, `J(b, x)` denotes the jacobian of `b` evaluated at `x`, `b_*` denotes the (https://www.wikiwand.com/en/Pushforward_measure)[push-forward] of `p` by `b`, and `x ∼ p` denotes `x` sampled from the distribution with density `p`.
In this table, `b` denotes a `Bijector`, `J(b, x)` denotes the jacobian of `b` evaluated at `x`, `b_*` denotes the [push-forward](https://www.wikiwand.com/en/Pushforward_measure) of `p` by `b`, and `x ∼ p` denotes `x` sampled from the distribution with density `p`.

The "Automatic" column in the table refers to whether or not you are required to implement the feature for a custom `Bijector`. "AD" refers to the fact that it can be implemented "automatically" using automatic differentiation, i.e. `ADBijector`.

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