diff --git a/cores/arduino/WMath.cpp b/cores/arduino/WMath.cpp
index 9685f915..23d5493a 100644
--- a/cores/arduino/WMath.cpp
+++ b/cores/arduino/WMath.cpp
@@ -47,18 +47,3 @@ extern long random(long howsmall, long howbig)
 
     return random(diff) + howsmall;
 }
-
-extern long map(long x, long in_min, long in_max, long out_min, long out_max)
-{
-    return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
-}
-
-extern uint16_t makeWord(uint16_t w)
-{
-    return w ;
-}
-
-extern uint16_t makeWord(uint8_t h, uint8_t l)
-{
-    return (h << 8) | l ;
-}