1 files changed, 7 insertions, 0 deletions
diff --git a/circuitpython/lib/libm_dbl/log10.c b/circuitpython/lib/libm_dbl/log10.c
new file mode 100644
index 0000000..bddedd6
--- /dev/null
+++ b/circuitpython/lib/libm_dbl/log10.c
@@ -0,0 +1,7 @@
+#include <math.h>
+
+static const double _M_LN10 = 2.302585092994046;
+
+double log10(double x) {
+    return log(x) / (double)_M_LN10;
+}