plotting generates hidden figure

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Moslem Uddin
Moslem Uddin 2019-9-2
回答： Walter Roberson 2019-9-2
while plotting i have the following figure, which is hiden. What to do?ray.jpg
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Moslem Uddin
Moslem Uddin 2019-9-2
>> opengl info
Version: '4.5.0 - Build 23.20.16.4973'
Vendor: 'Intel'
Renderer: 'Intel(R) UHD Graphics 620'
RendererDriverVersion: '23.20.16.4973'
RendererDriverReleaseDate: '28-Feb-2018'
MaxTextureSize: 16384
Visual: 'Visual 0x07, (RGBA 32 bits (8 8 8 8), Z depth 16 bits, Hardware acceleration, Doub…'
Software: 'false'
HardwareSupportLevel: 'full'
SupportsGraphicsSmoothing: 1
SupportsDepthPeelTransparency: 1
SupportsAlignVertexCenters: 1
Extensions: {225x1 cell}
MaxFrameBufferSize: 16384

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Walter Roberson
Walter Roberson 2019-9-2
Instead of using
fplot(pl_f, [0 10])
use
fplot(real(pl_f), [0 10])
Due to round-off, there are small imaginary quantities that fplot thinks are leading to discontinuities.

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