Searched defs:pi (Results 1 - 11 of 11) sorted by relevance

/bionic/libm/upstream-freebsd/lib/msun/src/
H A De_atan2f.c28 pi = 3.1415927410e+00; /* 0x40490fdb */ variable
53 case 2: return pi+tiny;/* atan(+0,-anything) = pi */
54 case 3: return -pi-tiny;/* atan(-0,-anything) =-pi */
73 case 2: return pi+tiny ; /* atan(+...,-INF) */
74 case 3: return -pi-tiny ; /* atan(-...,-INF) */
92 case 2: return pi-(z-pi_lo);/* atan(+,-) */
94 return (z-pi_lo)-pi;/* atan(-,-) */
H A De_acosl.c37 #define pi ((long double)pi1 + pi2) macro
40 pi = 3.14159265358979323846264338327950280e+00L; variable
55 else return pi+2.0*pio2_lo; /* acos(-1)= pi */
60 if(expt<ACOS_CONST) return pio2_hi+pio2_lo;/*x tiny: acosl=pi/2*/
73 return pi - 2.0*(s+w);
H A De_atan2.c23 * ARG (x+iy) = pi - arctan[y/(-x)] ... if x < 0,
30 * ATAN2(+-0, -(anything but NaN)) is +-pi ;
31 * ATAN2(+-(anything but 0 and NaN), 0) is +-pi/2;
33 * ATAN2(+-(anything but INF and NaN), -INF) is +-pi;
34 * ATAN2(+-INF,+INF ) is +-pi/4 ;
35 * ATAN2(+-INF,-INF ) is +-3pi/4;
36 * ATAN2(+-INF, (anything but,0,NaN, and INF)) is +-pi/2;
56 pi = 3.1415926535897931160E+00; /* 0x400921FB, 0x54442D18 */ variable
82 case 2: return pi+tiny;/* atan(+0,-anything) = pi */
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H A De_atan2l.c40 #define pi ((long double)pi1 + pi2) macro
43 pi = 3.14159265358979323846264338327950280e+00L; variable
75 case 2: return pi+tiny;/* atan(+0,-anything) = pi */
76 case 3: return -pi-tiny;/* atan(-0,-anything) =-pi */
96 case 2: return pi+tiny ; /* atan(+...,-INF) */
97 case 3: return -pi-tiny ; /* atan(-...,-INF) */
116 case 2: return pi-(z-pi_lo);/* atan(+,-) */
118 return (z-pi_lo)-pi;/* ata
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H A De_acos.c19 * acos(x) = pi/2 - asin(x)
20 * acos(-x) = pi/2 + asin(x)
22 * acos(x) = pi/2 - (x + x*x^2*R(x^2)) (see asin.c)
24 * acos(x) = pi/2 - (pi/2 - 2asin(sqrt((1-x)/2)))
31 * acos(x) = pi - 2asin(sqrt((1-|x|)/2))
32 * = pi - 0.5*(s+s*z*R(z)), where z=(1-|x|)/2,s=sqrt(z)
48 pi = 3.14159265358979311600e+00, /* 0x400921FB, 0x54442D18 */ variable
76 else return pi+2.0*pio2_lo; /* acos(-1)= pi */
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H A De_acosf.c24 pi = 3.1415925026e+00, /* 0x40490fda */ variable
44 else return pi+(float)2.0*pio2_lo; /* acos(-1)= pi */
62 return pi - (float)2.0*(s+w);
H A De_lgamma_r.c54 * lgamma(x)~(x-0.5)log(x)-x+0.5*log(2pi)+1/(12x)-1/(360x**3)+....
56 * lgamma(x)~(x-0.5)*(log(x)-1)-.5*(log(2pi)-1) + ...)
66 * -x*G(-x)*G(x) = pi/sin(pi*x),
68 * G(x) = pi/(sin(pi*x)*(-x)*G(-x))
69 * since G(-x) is positive, sign(G(x)) = sign(sin(pi*x)) for x<0
70 * Hence, for x<0, signgam = sign(sin(pi*x)) and
72 * = log(pi/(|x*sin(pi*
93 pi = 3.14159265358979311600e+00, /* 0x400921FB, 0x54442D18 */ variable
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H A De_lgammaf_r.c26 pi = 3.1415927410e+00, /* 0x40490fdb */ variable
100 if(ix<0x3e800000) return __kernel_sindf(pi*x);
124 case 0: y = __kernel_sindf(pi*y); break;
126 case 2: y = __kernel_cosdf(pi*((float)0.5-y)); break;
128 case 4: y = __kernel_sindf(pi*(one-y)); break;
130 case 6: y = -__kernel_cosdf(pi*(y-(float)1.5)); break;
131 default: y = __kernel_sindf(pi*(y-(float)2.0)); break;
162 nadj = __ieee754_logf(pi/fabsf(t*x));
/bionic/libc/bionic/
H A Dsystem_properties_compat.c77 prop_info_compat *pi; local
88 pi = TOC_TO_INFO(pa, entry);
89 if(memcmp(name, pi->name, len)) continue;
91 return (const prop_info *)pi;
100 const prop_info_compat *pi = (const prop_info_compat *)_pi; local
103 serial = pi->serial;
105 __futex_wait((volatile void *)&pi->serial, serial, NULL);
106 serial = pi->serial;
109 memcpy(value, pi->value, len + 1);
110 if(serial == pi
119 __system_property_foreach_compat( void (*propfn)(const prop_info *pi, void *cookie), void *cookie) argument
128 prop_info_compat *pi = TOC_TO_INFO(pa, entry); local
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H A Dsystem_properties.cpp143 const prop_info *pi; member in struct:find_nth_cookie
145 find_nth_cookie(uint32_t n) : count(0), n(n), pi(NULL) {
531 static void find_nth_fn(const prop_info *pi, void *ptr) argument
536 cookie->pi = pi;
542 void (*propfn)(const prop_info *pi, void *cookie), void *cookie)
601 int __system_property_read(const prop_info *pi, char *name, char *value) argument
604 return __system_property_read_compat(pi, name, value);
608 uint32_t serial = __system_property_serial(pi);
610 memcpy(value, pi
541 foreach_property(const uint32_t off, void (*propfn)(const prop_info *pi, void *cookie), void *cookie) argument
623 const prop_info *pi = __system_property_find(name); local
654 __system_property_update(prop_info *pi, const char *value, unsigned int len) argument
678 const prop_info *pi; local
696 __system_property_serial(const prop_info *pi) argument
729 __system_property_foreach(void (*propfn)(const prop_info *pi, void *cookie), void *cookie) argument
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/bionic/tests/
H A Dsystem_properties_test.cpp72 static void foreach_test_callback(const prop_info *pi, void* cookie) { argument
75 ASSERT_NE((prop_info *)NULL, pi);
79 static void hierarchical_test_callback(const prop_info *pi, void *cookie) { argument
85 __system_property_read(pi, name, value);
106 prop_info *pi; local
107 pi = (prop_info *)__system_property_find("property");
111 __system_property_update(pi, "value3", 6);
148 prop_info *pi; local
154 pi = (prop_info *)__system_property_find("property");
155 ASSERT_NE((prop_info *)NULL, pi);
347 const prop_info *pi; local
365 prop_info *pi; local
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