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=40f91e7d7cb98fedd86bc4e3178021f687190550;hpb=00f8603554b2ad3546d916bcc816e4a2e4441f9d

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;
+}
+