OpenXM/src/asir-port/cgi/r-fd.rr - diff

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Diff for /OpenXM/src/asir-port/cgi/r-fd.rr between version 1.2 and 1.5

-version 1.2, 2014/07/31 06:24:11
+version 1.5, 2014/08/27 02:14:40
 Line 1
 Line 1
 Line 1
- /* $OpenXM$ */
+ /* $OpenXM: OpenXM/src/asir-port/cgi/r-fd.rr,v 1.4 2014/08/06 07:39:47 takayama Exp $ */
  load("tk_fd.rr")$
  import("tk_r.rr")$
+ import("oh_number.rr")$
+ /* r_d2rat(0.3)  --> precision loss in truncation if not ctrl("bigfloat",1) */
+ ctrl("bigfloat",1)$
+ def r_d2rat(Y) {
+   if ((type(Y) ==4)||(type(Y)==5)||(type(Y)==6)) return map(r_d2rat,Y);
+   if ((type(Y)  == 1) && (ntype(Y) >= 1)) {
+     S = rtostr(Y);  Y = "eval(("+S+")*exp(0));";
+     /* print(Y); */
+     Y = eval_str(Y);
+     /* printf("Y=%a\n",Y); */
+     /* return oh_number.rats(Y); */
+     return rats2(Y);  /* temporary  */
+   }else return Y;
+ }
  def r_ahvec(A,B,C,Y) {
-   R=tk_fd.ygahvec(A,B,C,Y|all=1);
+   Y = r_d2rat(Y);
+   R=tk_fd.ahvec_abc(A,B,C,Y|all=1);
    Gamma=R[1];
    Der=R[0];
    Z=R[2]*Gamma;
-Line 14  def r_ahvec(A,B,C,Y) {
+Line 30  def r_ahvec(A,B,C,Y) {
 Line 14  def r_ahvec(A,B,C,Y) {
 Line 30  def r_ahvec(A,B,C,Y) {
    Fans=map(deval,Ans);
    Fans = tk_r.asir2r_c(Fans);
    return Fans;
+ }
+ /* temporary */
+ def rats2(X) {
+   if (X == 0) return 0;
+   Sign=1;
+   if (X <0) {Sign=-1  ; X = -X;}
+   Digit = number_floor(eval(log(X)/log(10)));
+   Num = number_floor((X/(10^Digit))*10^20);
+   return Sign*(Num/(10^20))*(10^Digit);
+ }
+ def checkrats2() {
+   for (I=0; I<10; I++) {
+      Sign=(-1)^(random()%2);
+      X = eval(exp(0)*(random()/random())*10^(Sign*(random()%300))); /* 308 */
+      printf("X=%a\n",X);
+      Y = rats2(X);
+      printf("Y=%a\n",Y);
+      if (number_abs(eval(Y*exp(0))/X-1) > 0.0000001) {
+         printf("error: X = %a, Y=%a\n",X,Y);
+      }
+   }
  }
  end$

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