Currency: Difference between revisions
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m (→{{header|Phix}}: marked incorrect) |
m (→{{header|Phix}}: mpfr_get_fixed now ok.) |
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=={{header|Phix}}== |
=={{header|Phix}}== |
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{{incorrect|Phix|seems I messed up mpfr_get_fixed, bear with, works on 1.0.1}} |
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{{libheader|Phix/mpfr}} |
{{libheader|Phix/mpfr}} |
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<!--<syntaxhighlight lang="phix">(phixonline)--> |
<!--<syntaxhighlight lang="phix">(phixonline)--> |
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<span style="color: # |
<span style="color: #7060A8;">requires</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"1.0.4"</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (mpfr_get_fixed() busted in 1.0.2|3)</span> |
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<span style="color: #7060A8;">requires</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"1.0.0"</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (mpfr_set_default_prec[ision] has been renamed)</span> |
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<span style="color: #008080;">include</span> <span style="color: #004080;">mpfr</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span> |
<span style="color: #008080;">include</span> <span style="color: #004080;">mpfr</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span> |
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<span style="color: #7060A8;">mpfr_set_default_precision</span><span style="color: #0000FF;">(-</span><span style="color: #000000;">20</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- ensure accuracy to at least 20 d.p.</span> |
<span style="color: #7060A8;">mpfr_set_default_precision</span><span style="color: #0000FF;">(-</span><span style="color: #000000;">20</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- ensure accuracy to at least 20 d.p.</span> |
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=== 64 bit === |
=== 64 bit === |
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As it happens, 64-bit Phix uses 80-bit floats for atoms, which actually have just enough accuracy for this task: |
As it happens, 64-bit Phix uses 80-bit floats for atoms, which actually have just enough accuracy for this task: |
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<!--<syntaxhighlight lang="phix"> |
<!--<syntaxhighlight lang="phix">--> |
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<span style="color: #7060A8;">requires</span><span style="color: #0000FF;">(</span><span style="color: #000000;">64</span><span style="color: #0000FF;">)</span> |
<span style="color: #7060A8;">requires</span><span style="color: #0000FF;">(</span><span style="color: #000000;">64</span><span style="color: #0000FF;">)</span> |
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<span style="color: #004080;">atom</span> <span style="color: #000000;">total_price</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">4000000000000000</span><span style="color: #0000FF;">*</span><span style="color: #000000;">5.5</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2.86</span><span style="color: #0000FF;">*</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span> |
<span style="color: #004080;">atom</span> <span style="color: #000000;">total_price</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">4000000000000000</span><span style="color: #0000FF;">*</span><span style="color: #000000;">5.5</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2.86</span><span style="color: #0000FF;">*</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span> |
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