diff --git a/README.md b/README.md
index a1ce297..ac9f4e3 100644
--- a/README.md
+++ b/README.md
@@ -17,9 +17,9 @@ cat_cable = @(T) -35+T/10.*cosh(10./T*30)+30-T/10;
 
 
 ```matlab
-| solver | initial guess(es) | ea | number of iterations|
+| solver | initial guess | ea | number of iterations|
 | --- | --- | --- | --- |
-|falsepos   | 900, 910 |  0.00001| 4 |
+|falsepos   | 900, 910 |  0.00001| 4  |
 |mod_secant | 900, 910 |  0.00001| 50 |
 |bisect     | 900, 910 |  0.00001| 17 |
 ```
diff --git a/plot_cat.m b/plot_cat.m
new file mode 100644
index 0000000..2c9aa29
--- /dev/null
+++ b/plot_cat.m
@@ -0,0 +1,5 @@
+cat_cable = @(x) -35+908.2131/10.*cosh(10./908.2131*x)+30-908.2131/10;
+x= -10:50;
+plot(x,cat_cable(x))
+f = figure(1);
+saveas(f,'problem1c.png');
\ No newline at end of file
diff --git a/problem1c.png b/problem1c.png
new file mode 100644
index 0000000..5eb0d48
Binary files /dev/null and b/problem1c.png differ