User:ColorfulGalaxy/Sandbox：修订间差异

2025年4月13日 (日) 21:24的最新版本

This is the sandbox. There will probably be another one as this can get too big.

1

4

1	4	4

4	4	1

1	1	1	1

4	4	4	4

1	2
2	2

2	2
2	2

from math import pi
p=pi
print(int(p),end=' ')
p-=int(p)
for i in range(14):
 p*=7
 print(int(p),end=' ')
 p-=int(p)

Pi in septenary: 3 0 6 6 3 6 5 1 4 3 2 0 3 6 1 http://oeis.org/A004606

153 and 1077 are not prime. 1077×7+3 is even, thus not prime.

Pi in tetradecimal: 3 1 13 10 7 5 12 13 10 8 1 3 7 5 2 http://oeis.org/A068439

43 is prime. 615 is not prime.

from math import e
from math import exp
for i in range(1,20):
 for j in range(1,20):
  print(i,j,exp(j)-i**i)

from math import sqrt
print("(7+14)/2=",(7+14)/2)
print("sqrt(7*14)=",sqrt(7*14))

Do not add links to B23 dot TV. These links will expire after a year. {{b}}

@@ 第2行： / 第2行： @@
 <!-- erich-friedman.github.io/mathmagic/0999.html (7) -->
-what do these charts mean
 <table><tr><td>
 {| class="wikitable"
@@ 第109行： / 第109行： @@
 </td></tr></table>
-Do not add links to B23 dot TV. These links will expire after a year. {{tl|b}}
+<pre>from math import pi
+p=pi
+print(int(p),end=' ')
+p-=int(p)
+for i in range(14):
+ p*=7
+ print(int(p),end=' ')
+ p-=int(p)</pre>
+Pi in septenary: 3 0 6 6 3 6 5 1 4 3 2 0 3 6 1 http://oeis.org/A004606
+and 1077 are not prime. 1077×7+3 is even, thus not prime.
+Pi in tetradecimal: 3 1 13 10 7 5 12 13 10 8 1 3 7 5 2 http://oeis.org/A068439
+is prime. 615 is not prime.
-+35+32+36+19+6+0+0+3=145
+<pre>from math import e
+from math import exp
+for i in range(1,20):
+ for j in range(1,20):
+  print(i,j,exp(j)-i**i)</pre>
+<pre>from math import sqrt
+print("(7+14)/2=",(7+14)/2)
+print("sqrt(7*14)=",sqrt(7*14))</pre>
-SO my calculation is correct
+Do not add links to B23 dot TV. These links will expire after a year. {{tl|b}}