diff --git a/src/s_cosf.c b/src/s_cosf.c
index 3e12f7a..1faf534 100644
--- a/src/s_cosf.c
+++ b/src/s_cosf.c
@@ -50,24 +50,22 @@ cosf(float x)
 	    return __kernel_cosdf(x);
 	}
 	if(ix<=0x407b53d1) {		/* |x| ~<= 5*pi/4 */
-	    if(ix>0x4016cbe3)		/* |x|  ~> 3*pi/4 */
-		return -__kernel_cosdf(x + (hx > 0 ? -c2pio2 : c2pio2));
-	    else {
+	    if(ix<=0x4016cbe3) {	/* |x|  ~> 3*pi/4 */
 		if(hx>0)
 		    return __kernel_sindf(c1pio2 - x);
 		else
 		    return __kernel_sindf(x + c1pio2);
-	    }
+	    } else
+	    	return -__kernel_cosdf(x + (hx > 0 ? -c2pio2 : c2pio2));
 	}
 	if(ix<=0x40e231d5) {		/* |x| ~<= 9*pi/4 */
-	    if(ix>0x40afeddf)		/* |x|  ~> 7*pi/4 */
-		return __kernel_cosdf(x + (hx > 0 ? -c4pio2 : c4pio2));
-	    else {
+	    if(ix<=0x40afeddf) {	/* |x|  ~> 7*pi/4 */
 		if(hx>0)
 		    return __kernel_sindf(x - c3pio2);
 		else
 		    return __kernel_sindf(-c3pio2 - x);
-	    }
+	    } else
+	    	return __kernel_cosdf(x + (hx > 0 ? -c4pio2 : c4pio2));
 	}
 
     /* cos(Inf or NaN) is NaN */
diff --git a/src/s_sinf.c b/src/s_sinf.c
index e1efb47..6fed17a 100644
--- a/src/s_sinf.c
+++ b/src/s_sinf.c
@@ -56,7 +56,7 @@ sinf(float x)
 		else
 		    return -__kernel_cosdf(x + s1pio2);
 	    } else
-		return __kernel_sindf((hx > 0 ? s2pio2 : -s2pio2) - x);
+			return __kernel_sindf((hx > 0 ? s2pio2 : -s2pio2) - x);
 	}
 	if(ix<=0x40e231d5) {		/* |x| ~<= 9*pi/4 */
 	    if(ix<=0x40afeddf) {	/* |x| ~<= 7*pi/4 */
@@ -65,7 +65,7 @@ sinf(float x)
 		else
 		    return __kernel_cosdf(x + s3pio2);
 	    } else
-		return __kernel_sindf(x + (hx > 0 ? -s4pio2 : s4pio2));
+			return __kernel_sindf(x + (hx > 0 ? -s4pio2 : s4pio2));
 	}
 
     /* sin(Inf or NaN) is NaN */
@@ -79,7 +79,7 @@ sinf(float x)
 		case 1: return  __kernel_cosdf(y);
 		case 2: return  __kernel_sindf(-y);
 		default:
-			return -__kernel_cosdf(y);
+				return -__kernel_cosdf(y);
 	    }
 	}
 }