diff --git a/src/include/ngspice/complex.h b/src/include/ngspice/complex.h
index f8d8c334e..9ed79eac7 100644
--- a/src/include/ngspice/complex.h
+++ b/src/include/ngspice/complex.h
@@ -69,7 +69,6 @@ typedef struct {
 #endif
 
 /* Some defines used mainly in cmath.c. */
-#define FTEcabs(d)  (((d) < 0.0) ? - (d) : (d))
 #define cph(c)    (atan2(imagpart(c), (realpart(c))))
 #define cmag(c)  (hypot(realpart(c), imagpart(c)))
 #define radtodeg(c) (cx_degrees ? ((c) * (180 / M_PI)) : (c))
@@ -82,7 +81,7 @@ typedef struct {
 #define cdiv(r1, i1, r2, i2, r3, i3)            \
 {                           \
     double r, s;                    \
-    if (FTEcabs(r2) > FTEcabs(i2)) {          \
+    if (fabs(r2) > fabs(i2)) {          \
         r = (i2) / (r2);            \
         s = (r2) + r * (i2);            \
         (r3) = ((r1) + r * (i1)) / s;       \
@@ -96,11 +95,6 @@ typedef struct {
 }
 
 
-
-
-#define DC_ABS(a,b) (fabs(a) + fabs(b))
-
-
 /*
  * Division among complex numbers
  */
diff --git a/src/maths/cmaths/cmath1.c b/src/maths/cmaths/cmath1.c
index 5f6d40d42..180e7a7a4 100644
--- a/src/maths/cmaths/cmath1.c
+++ b/src/maths/cmaths/cmath1.c
@@ -46,7 +46,7 @@ cx_mag(void *data, short int type, int length, int *newlength, short int *newtyp
     *newtype = VF_REAL;
     if (type == VF_REAL)
         for (i = 0; i < length; i++)
-            d[i] = FTEcabs(dd[i]);
+            d[i] = fabs(dd[i]);
     else
         for (i = 0; i < length; i++)
             d[i] = cmag(cc[i]);
diff --git a/src/maths/cmaths/cmath2.c b/src/maths/cmaths/cmath2.c
index e4ed30892..85a1ea8f0 100644
--- a/src/maths/cmaths/cmath2.c
+++ b/src/maths/cmaths/cmath2.c
@@ -41,8 +41,8 @@ cx_max_local(void *data, short int type, int length)
         int i;
 
         for (i = 0; i < length; i++)
-            if (largest < FTEcabs(dd[i]))
-                largest = FTEcabs(dd[i]);
+            if (largest < fabs(dd[i]))
+                largest = fabs(dd[i]);
     }
     return largest;
 }
@@ -467,7 +467,7 @@ cx_vector(void *data, short int type, int length, int *newlength, short int *new
     NG_IGNORE(length);
 
     if (type == VF_REAL)
-        len = (int)FTEcabs(*dd);
+        len = (int)fabs(*dd);
     else
         len = (int)cmag(*cc);
     if (len == 0)
@@ -494,7 +494,7 @@ cx_unitvec(void *data, short int type, int length, int *newlength, short int *ne
     NG_IGNORE(length);
 
     if (type == VF_REAL)
-        len = (int)FTEcabs(*dd);
+        len = (int)fabs(*dd);
     else
         len = (int)cmag(*cc);
     if (len == 0)
@@ -649,9 +649,9 @@ cx_mod(void *data1, void *data2, short int datatype1, short int datatype2, int l
     if ((datatype1 == VF_REAL) && (datatype2 == VF_REAL)) {
         d = alloc_d(length);
         for (i = 0; i < length; i++) {
-            r1 = (int)floor(FTEcabs(dd1[i]));
+            r1 = (int)floor(fabs(dd1[i]));
             rcheck(r1 > 0, "mod");
-            r2 = (int)floor(FTEcabs(dd2[i]));
+            r2 = (int)floor(fabs(dd2[i]));
             rcheck(r2 > 0, "mod");
             r3 = r1 % r2;
             d[i] = (double) r3;
@@ -672,13 +672,13 @@ cx_mod(void *data1, void *data2, short int datatype1, short int datatype2, int l
             } else {
                 c2 = cc2[i];
             }
-            r1 = (int)floor(FTEcabs(realpart(c1)));
+            r1 = (int)floor(fabs(realpart(c1)));
             rcheck(r1 > 0, "mod");
-            r2 = (int)floor(FTEcabs(realpart(c2)));
+            r2 = (int)floor(fabs(realpart(c2)));
             rcheck(r2 > 0, "mod");
-            i1 = (int)floor(FTEcabs(imagpart(c1)));
+            i1 = (int)floor(fabs(imagpart(c1)));
             rcheck(i1 > 0, "mod");
-            i2 = (int)floor(FTEcabs(imagpart(c2)));
+            i2 = (int)floor(fabs(imagpart(c2)));
             rcheck(i2 > 0, "mod");
             r3 = r1 % r2;
             i3 = i1 % i2;