trac 17447: further doctest adjustments

Author: nbruin

src/doc/ja/tutorial/tour_algebra.rst

@@ -164,7 +164,7 @@ Sageを使って常微分方程式を研究することもできる． :math:`x'
 ::
 
     sage: t = var('t')            # 変数 t を定義
-    sage: x = function('x',t)     # x を t の関数とする
+    sage: x = function('x')(t)     # x を t の関数とする
     sage: DE = diff(x, t) + x - 1
     sage: desolve(DE, [x,t])
     (_C + e^t)*e^(-t)

src/doc/pt/tutorial/tour_algebra.rst

@@ -151,7 +151,7 @@ ordinárias. Para resolver a equação :math:`x'+x-1=0`:
 ::
 
     sage: t = var('t')    # define a variable t
-    sage: x = function('x',t)   # define x to be a function of that variable
+    sage: x = function('x')(t)   # define x to be a function of that variable
     sage: DE = diff(x, t) + x - 1
     sage: desolve(DE, [x,t])
     (_C + e^t)*e^(-t)

src/sage/symbolic/expression.pyx

@@ -5645,7 +5645,7 @@ cdef class Expression(CommutativeRingElement):
 
         We can find coefficients of symbolic functions, :trac:`12255`::
 
-            sage: g = function('g', var('t'))
+            sage: g = function('g')(var('t'))
             sage: f = 3*g + g**2 + t
             sage: f.coefficients(g)
             [[t, 0], [3, 1], [1, 2]]

src/sage/tests/french_book/calculus_doctest.py

@@ -46,7 +46,7 @@
 Sage example in ./calculus.tex, line 122::
 
     sage: y = var('y'); u = sin(x) + x*cos(y)
-    sage: v = u.function(x)(y); v
+    sage: v = u.function(x,y); v
     (x, y) |--> x*cos(y) + sin(x)
     sage: w(x, y) = u; w
     (x, y) |--> x*cos(y) + sin(x)