Remove dependency on siunitx

Author: Amund211

main.py

@@ -74,7 +74,6 @@
     plt.rcParams.update(
         {
             "text.usetex": True,
-            "text.latex.preamble": "\\usepackage{siunitx}\n",
             "axes.titlesize": fontsize,
             "axes.labelsize": fontsize,
             "ytick.labelsize": fontsize,

tasks/fem_poisson.py

@@ -65,7 +65,7 @@ def _task_5_afem_solution(f, u, a, b, u_text, deg=10, tol=1e-3):
 
     plt.title(
         fr"$u\left( x \right) = {u_text}, x \in \left[ {a}, {b} \right]$, "
-        fr"$\textrm{{tol}} = \num{{{tol:.2e}}}$ "
+        fr"$\textrm{{tol}} = {tol:.2e}$ "
     )
     plt.suptitle("Poisson's equation AFEM - averaging vs maximizing")
 

tasks/poisson_1D.py

@@ -333,7 +333,7 @@ def f(x):
     plt.title(
         r"$u\left(x\right) = "
         r"\exp{-\frac{1}{\epsilon} \left(x - \frac{1}{2}\right)^2},"
-        fr"\epsilon = \num{{{eps:.2e}}}$"
+        fr"\epsilon = {eps:.2e}$"
     )
     plt.xlabel("Internal nodes $M$")
     plt.ylabel(r"Relative $L_2$ error $\frac{\|U-u\|}{\|u\|}$")
@@ -402,7 +402,7 @@ def f(x):
     plt.title(
         r"$u\left(x\right) = "
         r"\exp{-\frac{1}{\epsilon} \left(x - \frac{1}{2}\right)^2},"
-        fr"\epsilon = \num{{{eps:.2e}}}$"
+        fr"\epsilon = {eps:.2e}$"
     )
     plt.xlabel("Internal nodes $M$")
     plt.ylabel(r"Relative $L_2$ error $\frac{\|U-u\|}{\|u\|}$")