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<?php $from = -2; $to = 6; $segments = 20; $f = function($x) { return ($x ^ 2) + (2 * $x) + 3; }; $step = ($to - $from) / $segments; $A = 0; for ($x = $from + ($step / 2); $x < $to; $x += $step) { $A += $f($x) * $step; } echo $A;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Implicit conversion from float -1.8 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -1.4 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.9999999999999999 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.5999999999999999 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.19999999999999984 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 0.20000000000000018 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 0.6000000000000002 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.0000000000000002 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.4000000000000004 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.8000000000000003 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 2.2 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 2.6 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 3.4 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 3.8 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 4.2 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 4.6000000000000005 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.000000000000001 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.400000000000001 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.800000000000002 to int loses precision in /in/AW1RA on line 7 75.6
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Implicit conversion from float -1.8 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -1.4 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.9999999999999999 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.5999999999999999 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float -0.19999999999999984 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 0.20000000000000018 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 0.6000000000000002 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.0000000000000002 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.4000000000000004 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 1.8000000000000003 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 2.2 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 2.6 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 3.4 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 3.8 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 4.2 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 4.6000000000000005 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.000000000000001 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.400000000000001 to int loses precision in /in/AW1RA on line 7 Deprecated: Implicit conversion from float 5.800000000000002 to int loses precision in /in/AW1RA on line 7 75.6
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
75.6
preferences:
252.34 ms | 403 KiB | 291 Q