add pi algorithm

StevenHuang2020 · StevenHuang2020 · commit 151c179756bf · 2022-03-14T21:41:58.000+13:00
diff --git a/images/pointsLine13.svg b/images/pointsLine13.svg
@@ -23,12 +23,13 @@
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     <text x="52" y="15" fill="black" white-space="pre" font-family="Consolas" font-size="12px" font-style="normal" font-variant="normal">Pi Day of 2022</text>
-    <text x="25" y="150" fill="black" white-space="pre" font-family="Consolas" font-size="12px" font-style="normal" font-variant="normal">Liu Hui's π algorithm</text>
-    <text x="2" y="160" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_12=3.0,S_24=3.105828541230249</text>
-    <text x="2" y="168" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_48=3.1326286132812378,S_96=3.1393502030468667</text>
-    <text x="2" y="176" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_192=3.14103195089051,S_384=3.1414524722854624</text>
-    <text x="2" y="184" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_768=3.141557607911858,S_1536=3.1415838921483186</text>
-    <text x="2" y="192" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_3072=3.1415904632280505,S_6144=3.1415921059992717</text>
+    <text x="25" y="145" fill="black" white-space="pre" font-family="Consolas" font-size="10px" font-style="normal" font-variant="normal">Liu Hui's π algorithm</text>
+    <text x="15" y="155" fill="black" white-space="pre" font-family="Consolas" font-size="8px" font-style="normal" font-variant="normal">S_2N = Chord*R*N, where N=6,12,24,48,...</text>
+    <text x="2" y="165" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_12=3.0,S_24=3.105828541230249</text>
+    <text x="2" y="173" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_48=3.1326286132812378,S_96=3.1393502030468667</text>
+    <text x="2" y="181" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_192=3.14103195089051,S_384=3.1414524722854624</text>
+    <text x="2" y="189" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_768=3.141557607911858,S_1536=3.1415838921483186</text>
+    <text x="2" y="197" fill="black" white-space="pre" font-family="Consolas" font-size="7px" font-style="normal" font-variant="normal">S_3072=3.1415904632280505,S_6144=3.1415921059992717</text>
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