# 26 digits of PI= 3.14159 26535 89793 23846 26433 # 32-bit PI=acos(-1)= 3.141593 # p N=2**p kind PI (seq) time (seq) PI (par) time (par) 1 2 4 3.162353038787841796875 0.000000E+00 3.162353038787841796875 0.000000E+00 2 4 4 3.146800518035888671875 0.000000E+00 3.146800518035888671875 0.000000E+00 3 8 4 3.142894983291625976563 0.000000E+00 3.142894744873046875000 0.000000E+00 4 16 4 3.141918420791625976563 0.000000E+00 3.141918182373046875000 0.000000E+00 5 32 4 3.141674757003784179688 0.000000E+00 3.141674041748046875000 0.000000E+00 6 64 4 3.141612529754638671875 0.000000E+00 3.141613006591796875000 0.000000E+00 7 128 4 3.141597270965576171875 0.000000E+00 3.141597747802734375000 0.000000E+00 8 256 4 3.141594171524047851563 0.000000E+00 3.141593933105468750000 0.000000E+00 9 512 4 3.141592979431152343750 0.000000E+00 3.141592979431152343750 0.000000E+00 10 1024 4 3.141591548919677734375 0.000000E+00 3.141592741012573242188 0.000000E+00 11 2048 4 3.141591787338256835938 0.000000E+00 3.141592979431152343750 0.000000E+00 12 4096 4 3.141593933105468750000 0.000000E+00 3.141593217849731445313 0.000000E+00 13 8192 4 3.141591310501098632813 0.000000E+00 3.141593456268310546875 0.000000E+00 14 16384 4 3.141590595245361328125 0.000000E+00 3.141592741012573242188 0.000000E+00 15 32768 4 3.141591072082519531250 0.000000E+00 3.141592741012573242188 0.000000E+00 16 65536 4 3.141590118408203125000 0.000000E+00 3.141593456268310546875 0.000000E+00 17 131072 4 3.141554117202758789063 0.000000E+00 3.141594886779785156250 0.000000E+00 18 262144 4 3.141556262969970703125 0.000000E+00 3.141588926315307617188 0.000000E+00 19 524288 4 3.141239643096923828125 0.000000E+00 3.141569375991821289063 0.000000E+00 20 1048576 4 3.140426158905029296875 0.000000E+00 3.141420602798461914063 0.000000E+00 21 2097152 4 3.139504432678222656250 0.119059E+00 3.141782999038696289063 0.000000E+00 22 4194304 4 3.125116586685180664063 0.000000E+00 3.143850326538085937500 0.000000E+00 23 8388608 4 2.991986751556396484375 0.110956E+00 3.136086463928222656250 0.623300E-02 24 16777216 4 4.000000000000000000000 0.996420E-01 3.159400939941406250000 0.124650E-01 25 33554432 4 2.000000000000000000000 0.199296E+00 3.172433853149414062500 0.395140E-01 26 67108864 4 1.000000000000000000000 0.398607E+00 3.125431060791015625000 0.141280E-01 27 134217728 4 0.500000000000000000000 0.858457E+00 3.287492275238037109375 0.127655E+00 28 268435456 4 0.250000000000000000000 0.159423E+01 2.000000000000000000000 0.243643E+00 29 536870912 4 0.125000000000000000000 0.317574E+01 1.000000000000000000000 0.459421E+00 30 1073741824 4 0.062500000000000000000 0.637895E+01 0.500000000000000000000 0.834423E+00 31 2147483648 4 0.031250000000000000000 0.127927E+02 0.250000000000000000000 0.153346E+01 32 4294967296 4 0.015625000000000000000 0.256152E+02 0.125000000000000000000 0.323405E+01 33 8589934592 4 0.007812500000000000000 0.510193E+02 0.062500000000000000000 0.642019E+01 34 17179869184 4 0.003906250000000000000 0.102038E+03 0.031250000000000000000 0.127839E+02 35 34359738368 4 0.001953125000000000000 0.203991E+03 0.015625000000000000000 0.256609E+02