X-Git-Url: https://hackdaworld.org/gitweb/?p=physik%2Fposic.git;a=blobdiff_plain;f=vasp_tools%2Facos.c;fp=vasp_tools%2Facos.c;h=609a6dcd46a9246ae2d24d6bc0c4b5fbc2ebdfa1;hp=0000000000000000000000000000000000000000;hb=6e6d7126ea9a845f11637d8e1b8eb2b570ac4dc9;hpb=97dc63eb6a519b8e1f4fbfaa9760dd94539436b0

diff --git a/vasp_tools/acos.c b/vasp_tools/acos.c
new file mode 100644
index 0000000..609a6dc
--- /dev/null
+++ b/vasp_tools/acos.c
@@ -0,0 +1,11 @@
+/* acos */
+
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+
+int main(int argc,char **argv) {
+	printf("%f\n",180.0/M_PI*acos(atof(argv[1])));
+	return 0;
+}
+