diff --git a/algorithms/maths/is_armstrong.m b/algorithms/maths/is_armstrong.m
new file mode 100644
index 0000000..a229e5b
--- /dev/null
+++ b/algorithms/maths/is_armstrong.m
@@ -0,0 +1,18 @@
+%% Armstrong no
+
+function n= is_armstrong(num)
+if(num<0)
+    n=0; %as negative no can't be armstrong
+end
+sum=0;
+temp=num;
+while(temp>0)
+    sum=sum*10 + rem(temp,10);
+    temp=fix(temp/10);
+end
+if(sum==num)
+    n=1;    % the no is armstrong
+else
+    n=0;    % the no is not armstrong
+end
+end