Merge pull request #62 from kNOzone/patch-4

Create twos_complement_of_binary.m

Author: cozek

algorithms/maths/twos_complement_of_binary.m

@@ -0,0 +1,35 @@
+%% 2's complement of binary no;
+
+function twos_comp = twos_complement_of_binary(bin)
+c=0;
+temp=bin;
+twos_comp=0;
+while(temp>0 && rem(temp,10)==0)
+    twos_comp=twos_comp*10 + rem(temp,10);
+    temp=fix(temp/10);
+    c=c+1;
+end
+if(temp>0)
+    twos_comp=twos_comp*10 + rem(temp,10);
+    temp=fix(temp/10);
+    c=c+1;
+end
+while(temp>0)
+    if(rem(temp,10)==1)
+        twos_comp=twos_comp*10 + 0;
+    else
+        twos_comp=twos_comp*10 + 1;
+    end
+    temp=fix(temp/10);
+    c=c+1;
+end
+
+temp=twos_comp;
+twos_comp=0;
+while(c>0)      %reversing the order;
+    twos_comp=twos_comp*10 + rem(temp,10);
+    temp=fix(temp/10);
+    c=c-1;
+end
+end
+