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diff scripts/general/is_square.m @ 26:e90ea9cbd4de

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[project @ 1993-08-10 20:56:55 by jwe] Initial revision
author jwe
date Tue, 10 Aug 1993 20:56:55 +0000
parents
children 98eb51c870b2
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--- /dev/null
+++ b/scripts/general/is_square.m
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+function retval = is_square (x)
+
+# usage: is_square (x)
+#
+# If x is square, then return value is the dimension of x.
+# otherwise, returns a value of 0
+#
+# See also: size, rows, columns, length, is_matrix, is_scalar, is_vector
+
+  if (nargin == 1)
+    [nr, nc] = size (x);
+    if( nr == nc) 
+      retval = nr;
+    else
+      retval = 0;
+    endif
+  else
+    error ("usage: is_square (x)");
+  endif
+
+endfunction