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Diffstat (limited to 'source/know/concept/dirac-delta-function')
| -rw-r--r-- | source/know/concept/dirac-delta-function/index.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/source/know/concept/dirac-delta-function/index.md b/source/know/concept/dirac-delta-function/index.md index 63edd81..88a08cb 100644 --- a/source/know/concept/dirac-delta-function/index.md +++ b/source/know/concept/dirac-delta-function/index.md @@ -1,5 +1,6 @@ --- title: "Dirac delta function" +sort_title: "Dirac delta function" date: 2021-02-22 categories: - Mathematics @@ -67,7 +68,7 @@ $$\begin{aligned} <div class="accordion"> <input type="checkbox" id="proof-scale"/> <label for="proof-scale">Proof</label> -<div class="hidden"> +<div class="hidden" markdown="1"> <label for="proof-scale">Proof.</label> Because it is symmetric, $\delta(s x) = \delta(|s| x)$. Then by substituting $\sigma = |s| x$: @@ -90,7 +91,7 @@ $$\begin{aligned} <div class="accordion"> <input type="checkbox" id="proof-dv1"/> <label for="proof-dv1">Proof</label> -<div class="hidden"> +<div class="hidden" markdown="1"> <label for="proof-dv1">Proof.</label> Note which variable is used for the differentiation, and that $\delta'(x - \xi) = - \delta'(\xi - x)$: |