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Sinc interpolation [message #35518]

Mon, 16 June 2003 06:40

the_cacc
Messages: 104
Registered: October 2001

Senior Member

OK, I'm stuck. Can someone show me how to sinc interpolate? My code
does not do it very well... at all.

Thanks.

PRO sinc_interpolate

; Sinc interpolation (1D).

n = 10

; Indices for which we have values.

ix = FINDGEN(n)

; The actual values.

y = findgen(n)

; Want value at this point.

x = 5.2

; Distances.

d = ABS(ix - x)

; Sinc.

s = SIN(d) / d

; Calculate value.

val = TOTAL(s * y)

print,'Sinc',val

print,'True',x

END

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[Message index]

		Sinc interpolation By: the_cacc on Mon, 16 June 2003 06:40
		sec : U Re: Sinc interpolation By: Andrew Cool on Mon, 23 June 2003 16:16
		Re: Sinc interpolation By: Craig Markwardt on Mon, 23 June 2003 08:27
		Re: Sinc interpolation By: the_cacc on Mon, 23 June 2003 07:55

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