diff --git a/midterm notes b/midterm notes
new file mode 100644
index 0000000..3a08e73
--- /dev/null
+++ b/midterm notes	
@@ -0,0 +1,8 @@
+Sources of error
+  Higher precision=higher accuracy for numerical approximation of analytical model
+  Truncation (approx of function), roundoff error (fixed number of bits)
+  
+  11011 in base 2 = 2^4+2^3+0*2^2+2^1+2^0=27
+  1.011=2^0+0*2^-1+2^-2+2^-3=1.375
+  Max 8 bit integer: 2^8
+