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.TH fcontour2d 2 "April 1993" "Scilab Group" "Scilab Function"
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fcontour2d - level curves of a surface defined by a function on a 2D plot
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fcontour2d(xr,yr,f,nz,[style,strf,leg,rect,nax])
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fcontour2d(xr,yr,f,nz,<opt_args>)
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: two real row vectors of size n1 and n2.
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: is an external which defines the surface
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\fVz=f(x,y)\fR. It is first computed on the grid specified by
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\fVxr,yr\fR. Then, control is passed to the routine \fVcontour2d\fR.
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: the level values or the number of levels.
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If \fVnz\fR is an integer, its value gives the number of level curves
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equally spaced from zmin to zmax.
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If \fVnz\fR is a vector, \fVnz(i)\fR gives the value of the ith level curve.
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: This represents a sequence of statements \fVkey1=value1,
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key2=value2\fR,... where \fVkey1\fR, \fVkey2,...\fR can be one of the
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following: style, leg, rect, nax, strf or axesflag and frameflag (see plot2d)
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[style,strf,leg,rect,nax]
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: see \fVcontour2d\fR.
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Draws level curves of a surface \fVz=f(x,y)\fR. The level curves are
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drawn on a 2D plot. The surface is given by the external function
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\fVf\fR. See \fVcontour2d\fR.
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Enter the command \fVfcontour2d()\fR to see a demo.
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deff('z=surf(x,y)','z=x^4-y^4')
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fcontour2d(x,y,surf,10);
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contour, contour2d, fcontour