Gradient descent: Difference between revisions

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→‎{{header|Phix}}: added a comment involving an exception.
m (→‎{{header|Phix}}: now same as REXX as well)
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Results now match (at least) Algol 68/W, Fortran, Go, Julia, Raku, REXX, and Wren [at least to 6dp or more].<br>
Note that specifying a tolerance < 1e-7 causes an infinite loop. &nbsp; <small>(except for REXX which will tolerate a much smaller tolerance.</small>)<br>
Results on 32/64 bit Phix agree to 13dp, which I therefore choose to show in full here (but otherwise would not really trust).
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