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Interval package: Difference between revisions
→Arithmetic operations: added examples
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One operation that should be noted is the <code>fma</code> function (fused multiply and add). It computes '''''x''''' * '''''y''''' + '''''z''''' in a single step and is much slower than multiplication followed by addition. However, it is more accurate and therefore preferred in some situations. | One operation that should be noted is the <code>fma</code> function (fused multiply and add). It computes '''''x''''' * '''''y''''' + '''''z''''' in a single step and is much slower than multiplication followed by addition. However, it is more accurate and therefore preferred in some situations. | ||
octave:1> sin (infsup (0.5)) | |||
ans = [.47942553860420294, .47942553860420307] | |||
octave:2> pow (infsup (2), infsup (3, 4)) | |||
ans = [8, 16] | |||
octave:3> atan2 (infsup (1), infsup (1)) | |||
ans = [.7853981633974482, .7853981633974484] | |||
=== Reverse arithmetic operations === | === Reverse arithmetic operations === | ||