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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

Raabi
2012-11-30 17:43:50

Well, let me explore Secant method, and thanks again for your attention.

bobbym
2012-11-30 17:35:22

Hi;

There is also if I remember a slight difference between the secant method and regula falsi.

Raabi
2012-11-30 14:40:01

ok, thanks and regards.

Raabi

bobbym
2012-11-30 08:27:39

Hi;

The first one I recognize as the false position method.

The second one is slightly off.



No matter how it is phrased it is not my favorite choice for obtaining roots.

Raabi
2012-11-29 23:37:56

Hello Wizards

This time, I came up with another confusion on the subject. Just over-viewing the subject, I found two entirely different (apparently, at least) formulae for the method. One is:

x1 = [a * f(b) - b*f(a)] / [f(b) - f(a)]; where a and b are two guess points.

The other is:

x = [xn - x(n-1)] / [f((xn) - f(xn-1)] * f(xn)

Are these two formulae actually the same or different for their use in different situations. Please help keeping in mind that I am just a toddler in this branch of mathematics.

I hope and wish bobbym is somewhere around.

Thanks in anticipation.

Raabi

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