first commit

e^x.cpp

@@ -0,0 +1,25 @@
+#include<stdio.h>
+#include<math.h>
+main()
+{
+int x;
+double y;
+printf("Please input x:");
+scanf("%d", &x);
+if (x > 0)
+{
+y = exp(x);
+}
+else if (x< 0)
+{
+y = exp(x);
+}
+else
+{
+printf("y==1\n");
+}
+printf("y=%f\n", y);
+}
+
+
+

测试1.cpp

@@ -1,21 +0,0 @@
-#include<stdio.h>
-#include<math.h>
-#define pi 3.14
-
-int main()
-{
-	int a;
-	double b;
-	printf("请输入你要计算的角度:");
-    scanf("%d",&a);
-    b=a*pi/180;
-	printf("%f\n",sin(b)) ;
-	printf("%f\n",cos(b)) ;
-	printf("%f\n",tan(b)) ;
-	return 0;
-
- } 
-
-
- 
-