diff --git a/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.0.md b/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.0.md
new file mode 100644
index 0000000..01ac0dd
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.0.md
@@ -0,0 +1 @@
+Was ist
[$]\left(\mathbf{a}\cdot\nabla\right)\mathbf{r}=\mathbf{a}[/$]
diff --git a/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.1.md b/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.1.md
new file mode 100644
index 0000000..43f3321
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrleftmathbfacdotnablarightmathbfrmathbfa.1.md
@@ -0,0 +1 @@
+[$]\mathbf{a}[/$]
diff --git a/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.0.md b/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.0.md
new file mode 100644
index 0000000..c3402b3
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.0.md
@@ -0,0 +1 @@
+Was ist
[$]\nabla\times\mathbf{r}[/$]
diff --git a/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.1.md b/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.1.md
new file mode 100644
index 0000000..1f02943
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrnablatimesmathbfr.1.md
@@ -0,0 +1 @@
+[$]\vec{0}[/$]
diff --git a/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.0.md b/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.0.md
new file mode 100644
index 0000000..d59a0d0
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.0.md
@@ -0,0 +1 @@
+Was ist
[$]\nable\cdot\mathbf{r}[/$]
diff --git a/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.1.md b/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.1.md
new file mode 100644
index 0000000..37883b9
--- /dev/null
+++ b/src/edyn.1130981640.2125817583/was-istbrbrnablecdotmathbfr.1.md
@@ -0,0 +1 @@
+[$]3[/$]