basic: confirming that high-order function is working properly?

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minjaesong
2020-12-27 21:52:49 +09:00
parent e37a382fe2
commit 817548695d

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@@ -3,7 +3,7 @@
10 DEFUN SINC(P)=IF P==0 THEN 1.0 ELSE SIN(P)/P
20 DEFUN TOCHAR(P,X)=IF (X==ROUND(ZEROLINE+P*AMP)) THEN "@" ELSE IF (X==ZEROLINE) THEN "|" ELSE CHR(250)
30 DEFUN SCONCAT(ACC,S)=ACC+S
40 DEFUN PLOTLINE(F,X)=FOLD(SCONCAT,"",MAP(TOCHAR~<F~<X,1 TO ZEROLINE+AMP))
40 DEFUN PLOTLINE(F,X)=FOLD(SCONCAT,"",MAP(TOCHAR~<F(X),1 TO ZEROLINE+AMP))
100 FOR I=-40 TO 40
110 PRINT PLOTLINE(SINC,I)
120 NEXT