| 1 | XLFMTH1 ;SF-ISC - CONT. OF MATH FUNCTIONS;07/16/93 10:21
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| 2 | ;;8.0;KERNEL;;Jul 10, 1995
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| 3 | ;these tags cannot be called directly. Must use tags in XLFMTH.
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| 4 | ASIND ;
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| 5 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIGT,FOLD S PR=$$PR($G(PR),10) D AS S Y=$$RTD^XLFMTH(Y,PR) G Q
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| 6 | ASIN ;
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| 7 | N L,M,N,O,P,Y,LIM,SIGN,SIG,SIGS,SIGT,FOLD S PR=$$PR($G(PR),10) D AS G Q
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| 8 | AS G:$TR(X,"-")=1 AS2 G:X>.9 AS1 S (Y,L)=X D LIM^XLFMTH F O=3:2 S L=L*X*X*(O-2)/(O-1)*(O-2)/O,Y=Y+L Q:($TR(L,"-")<LIM)
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| 9 | Q
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| 10 | AS1 S SIGS=$S(X<0:-1,1:1) S Y=1/(1/X/X-1),X=.5 S X=$$PWR^XLFMTH(Y,X) D AT S Y=Y*SIGS Q
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| 11 | AS2 S Y=3.14159265358979/2*X Q
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| 12 | ACOSD ;
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| 13 | N L,M,N,O,P,Y,LIM,SIGN,SIG,SIGS,SIGT,FOLD S PR=$$PR($G(PR),10) D AC S Y=$$RTD^XLFMTH(Y,PR) G Q
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| 14 | ACOS ;
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| 15 | N L,M,N,O,P,Y,LIM,SIG,SIGN,SIGS,SIGT,FOLD S PR=$$PR($G(PR),10) D AC G Q
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| 16 | AC G:$TR(X,"-")=1 AC1 S SIG=$S(X<0:-1,1:1),Y=1-(X*X),X=.5 S X=$$PWR^XLFMTH(Y,X) D AS S Y=$S(SIG<0:3.14159265358979-Y,1:Y) Q
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| 17 | AC1 S Y=0 Q
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| 18 | ATAND ;
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| 19 | N L,M,N,O,P,Y,LIM,SIGN,SIG,SIGS,SIGT,FOLD S PR=$$PR($G(PR),10) D AT S Y=$$RTD^XLFMTH(Y,PR) G Q
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| 20 | ATAN ;
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| 21 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10) D AT G Q
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| 22 | AT S SIGT=$S(X<0:-1,1:1),X=$TR(X,"-"),X=$S(X<.0000000001:.0000000001,X>9999999999:9999999999,1:X),FOLD=$S(X'<1:0,1:1),X=$S(FOLD:1/X,1:X),L=X,Y=3.14159265358979/2-(1/X),SIGN=1 G:X<1.3 AT1
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| 23 | D LIM^XLFMTH F O=3:2 S L=L*X*X,Y=Y+(1/(O*L)*SIGN),SIGN=SIGN*-1 Q:($TR(1/L,"-")<LIM)
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| 24 | S Y=$S(FOLD:3.14159265358979/2-Y,1:Y),Y=$S(SIGT<1:-Y,1:Y) Q
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| 25 | AT1 S X=$S(FOLD:1/X,1:X),Y=1/((1/X/X)+1),X=.5,X=$$PWR^XLFMTH(Y,X) D AS S Y=$S(SIGT<1:-Y,1:Y) Q
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| 26 | ACOTD ;
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| 27 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ATANDEG^XLFMTH(X,PR)
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| 28 | ACOT ;
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| 29 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ATAN^XLFMTH(X,PR)
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| 30 | ASECD ;
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| 31 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ACOSDEG^XLFMTH(X,PR)
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| 32 | ASEC ;
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| 33 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ACOS^XLFMTH(X,PR)
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| 34 | ACSCD ;
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| 35 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ASINDEG^XLFMTH(X,PR)
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| 36 | ACSC ;
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| 37 | N L,M,N,O,P,Y,LIM,SIGN,SIGS,SIG,SIGT,FOLD S PR=$$PR($G(PR),10),X=1/X Q $$ASIN^XLFMTH(X,PR)
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| 38 | ;
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| 39 | PR(PR,PL) Q $S('$L(PR):PL,PR>PL:PL,1:PR)
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| 40 | Q Q +$J(Y,0,$S((PR-$L(Y\1))'<0:PR-$L(Y\1),1:0))
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