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.help gsscoeff Aug85 "Gsurfit Package"
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NAME
gsscoeff -- Procedure to set a coefficient
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SYNOPSIS
gsscoeff (sf, xorder, yorder, coeff)

.nf
    pointer	sf	# surface descriptor	
    int		xorder	# x order of desired coefficient
    int		yorder	# y order of desired coefficient
    real	coeff	# coefficient value
.fi
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ARGUMENTS
.ls sf    
Pointer to the surface descriptor.
.le
.ls xorder, yorder
The x and y order of the desired coefficient.
.le
.ls coeff
The value of the coefficient to be set.
.le
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DESCRIPTION
GSSCOEFF sets the coefficient of x ** (xorder - 1) * y ** (yorder - 1).
GSSCOEFF returns if xorder and yorder are out of range.
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NOTES
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SEE ALSO
gsgcoeff
.endhelp