update doctest

Author: latot

inst/@sym/besseli.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = 2*besseli(n,x)
 %%   @result{} A = (sym) 2⋅besseli(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} (sym) besseli(n - 1, x) + besseli(n + 1, x)
 %% @end group
 %% @end example

inst/@sym/besselj.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = 2*besselj(n,x)
 %%   @result{} A = (sym) 2⋅besselj(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} (sym) besselj(n - 1, x) - besselj(n + 1, x)
 %% @end group
 %% @end example

inst/@sym/besseljn.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = besseljn(n, x)
 %%   @result{} A = (sym) jn(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} ans = (sym)
 %%
 %%                      (n + 1)⋅jn(n, x)

inst/@sym/besselk.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = 2*besselk(n,x)
 %%   @result{} A = (sym) 2⋅besselk(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} (sym) -besselk(n - 1, x) - besselk(n + 1, x)
 %% @end group
 %% @end example

inst/@sym/bessely.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = 2*bessely(n, x)
 %%   @result{} A = (sym) 2⋅bessely(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} (sym) bessely(n - 1, x) - bessely(n + 1, x)
 %% @end group
 %% @end example

inst/@sym/besselyn.m

@@ -27,7 +27,7 @@
 %% syms n x
 %% A = besselyn(n, x)
 %%   @result{} A = (sym) yn(n, x)
-%% diff(A)
+%% diff(A, x)
 %%   @result{} ans = (sym)
 %%
 %%                      (n + 1)⋅yn(n, x)