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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/asymptote/doc/log2graph.asy |
Initial commit
Diffstat (limited to 'graphics/asymptote/doc/log2graph.asy')
-rw-r--r-- | graphics/asymptote/doc/log2graph.asy | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/graphics/asymptote/doc/log2graph.asy b/graphics/asymptote/doc/log2graph.asy new file mode 100644 index 0000000000..238f412627 --- /dev/null +++ b/graphics/asymptote/doc/log2graph.asy @@ -0,0 +1,17 @@ +import graph; +size(200,IgnoreAspect); + +// Base-2 logarithmic scale on y-axis: + +real log2(real x) {static real log2=log(2); return log(x)/log2;} +real pow2(real x) {return 2^x;} + +scaleT yscale=scaleT(log2,pow2,logarithmic=true); +scale(Linear,yscale); + +real f(real x) {return 1+x^2;} + +draw(graph(f,-4,4)); + +yaxis("$y$",ymin=1,ymax=f(5),RightTicks(Label(Fill(white))),EndArrow); +xaxis("$x$",xmin=-5,xmax=5,LeftTicks,EndArrow); |