Added if_solutions methods

Reviewed-on: #5
Co-authored-by: Mark <mark@betalupi.com>
Co-committed-by: Mark <mark@betalupi.com>

lib/typst/local/handout/0.1.0/handout.typ

@@ -137,7 +137,11 @@
   }
 }
 
-#let notsolution(content) = {
+#let if_solutions(content) = {
+  if show_solutions { content }
+}
+
+#let if_no_solutions(content) = {
   if not show_solutions { content }
 }
 

src/Advanced/Tropical Polynomials/parts/00 arithmetic.typ

@@ -126,7 +126,7 @@ Fill the following tropical addition and multiplication tables
 
 #let col = 10mm
 
-#notsolution(
+#if_no_solutions(
   table(
     columns: (1fr, 1fr),
     align: center,

src/Advanced/Tropical Polynomials/parts/01 polynomials.typ

@@ -63,7 +63,7 @@ where all exponents represent repeated tropical multiplication.
 Draw a graph of the tropical polynomial $f(x) = x^2 #tp 1x #tp 4$. \
 #hint([$1x$ is not equal to $x$.])
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   $f(x) = min(2x , 1+x, 4)$, which looks like:
@@ -132,7 +132,7 @@ How can we use the graph to determine these roots?
 Graph $f(x) = -2x^2 #tp x #tp 8$. \
 #hint([Use half scale. 1 box = 2 units.])
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   #graphgrid({
@@ -210,7 +210,7 @@ and always produces $7$ for sufficiently large inputs.
 #problem()
 Graph $f(x) = 1x^2 #tp 3x #tp 5$.
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   The graphs of all three terms intersect at the same point:
@@ -261,7 +261,7 @@ How are the roots of $f$ related to its coefficients?
 #problem()
 Graph $f(x) = 2x^2 #tp 4x #tp 4$.
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution(
   graphgrid({

src/Advanced/Tropical Polynomials/parts/02 cubic.typ

@@ -10,7 +10,7 @@ Consider the polynomial $f(x) = x^3 #tp x^2 #tp 3x #tp 6$. \
 - use this graph to find the roots of $f$
 - write (and expand) a product of linear factors with the same graph as $f$.
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   - Roots are 1, 2, and 3.
@@ -48,7 +48,7 @@ Consider the polynomial $f(x) = x^3 #tp x^2 #tp 6x #tp 6$. \
 - use this graph to find the roots of $f$
 - write (and expand) a product of linear factors with the same graph as $f$.
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   - Roots are 1, 2.5, and 2.5.
@@ -82,7 +82,7 @@ Consider the polynomial $f(x) = x^3 #tp 6x^2 #tp 6x #tp 6$. \
 - use this graph to find the roots of $f$
 - write (and expand) a product of linear factors with the same graph as $f$.
 
-#notsolution(graphgrid(none))
+#if_no_solutions(graphgrid(none))
 
 #solution([
   - Roots are 2, 2, and 2.