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Arithmetic-geometric mean/Calculate Pi: Difference between revisions
Arithmetic-geometric mean/Calculate Pi (view source)
Revision as of 10:44, 10 November 2023
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<pre>3.141592653589794</pre>
==={{header|IS-BASIC}}===
<syntaxhighlight lang="is-basic">100 PROGRAM "PI.bas"
110 LET DIGITS=10
120 LET AN,PN=1
130 LET BN=SQR(.5)
140 LET TN=.5^2
150 DO WHILE PN<=DIGITS
160 LET PREVAN=AN
170 LET AN=(BN+AN)/2
180 LET BN=SQR(BN*PREVAN)
190 LET PREVAN=PREVAN-AN
200 LET TN=TN-(PN*PREVAN^2)
210 LET PN=PN+PN
220 LOOP
230 PRINT (AN+BN)^2/(TN*4)</syntaxhighlight>
==={{header|True BASIC}}===
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