diff --git a/TP2/rayon2.c b/TP2/rayon2.c
new file mode 100644
index 0000000..d9e4e1e
--- /dev/null
+++ b/TP2/rayon2.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+int main() {
+    float       x23 ;
+    float       z_230 = 1e1;
+    float       t_340 = 10.;
+    float    oo=1./2*2*1/2;
+    const float loss = 6.28318/oo*1./4. ;
+
+
+    printf("%f %f %f \n",loss, z_230, t_340);
+    x23  = loss * z_230 *  t_340;
+    printf("resultat = %f\n",x23);
+
+}