53 lines
579 B
C++
53 lines
579 B
C++
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#include "stdafx.h"
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#include "defs.h"
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static void arcsinh(void);
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void
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eval_arcsinh(void)
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{
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push(cadr(p1));
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eval();
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arcsinh();
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}
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static void
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arcsinh(void)
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{
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double d;
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save();
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p1 = pop();
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if (p1->k == DOUBLE) {
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d = p1->u.d;
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d = log(d + sqrt(d * d + 1.0));
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push_double(d);
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restore();
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return;
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}
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if (iszero(p1)) {
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push(_zero);
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restore();
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return;
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}
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push_symbol(ARCSINH);
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push(p1);
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list(2);
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restore();
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}
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static char *s[] = {
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"arcsinh(0.0)",
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"0",
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"arcsinh(0)",
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"0",
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};
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void
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test_arcsinh(void)
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{
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test(__FILE__, s, sizeof s / sizeof (char *));
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}
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