Roots of a function: Difference between revisions
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.... MAY-BE at +1.99999999999999999950, f(x) = -8.674e-19</pre> |
.... MAY-BE at +1.99999999999999999950, f(x) = -8.674e-19</pre> |
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NB: smallest increment for real type in D is real.epsilon = 1.0842e-19. |
NB: smallest increment for real type in D is real.epsilon = 1.0842e-19. |
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=={{header|Dart}}== |
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{{trans|Scala}} |
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<lang delphi>import 'dart:async'; |
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double fn(double x) => x * x * x - 3 * x * x + 2 * x; |
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double findRoots(Function(double) f, double start, double stop, double step, double epsilon) { |
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for (double x = start; x < stop; x = x + step) { |
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if (fn(x).abs() < epsilon) print(x); |
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} |
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} |
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main() { |
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findRoots(fn, -1.0, 3.0, 0.0001, 0.000000001); |
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}</lang> |
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=={{header|DWScript}}== |
=={{header|DWScript}}== |
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