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#### nitn28

i m trying to write vba code to get coeefiecints of second order

polynomial eequation

Equation: y = (c2 * x^2) + (c1 * x ^1) + b

c2: =INDEX(LINEST(y,x^{1,2}),1)

C1: =INDEX(LINEST(y,x^{1,2}),1,2)

b = =INDEX(LINEST(y,x^{1,2}),1,3)

ihave recorded macro

Cells(j + 2, "D").Select

ActiveCell.FormulaR1C1 = _

"=INDEX(LINEST(RC[-2]:R[2]C[-2],RC[-3]:R[2]C[-3]^{1,2}),1)"

Cells(j + 2, "E").Select

ActiveCell.FormulaR1C1 = _

"=INDEX(LINEST(RC[-3]:R[2]C[-3],RC[-4]:R[2]C[-4]^{1,2}),1,2)"

Cells(j + 2, "F").Select

ActiveCell.FormulaR1C1 = _

"=INDEX(LINEST(RC[-4]:R[2]C[-4],RC[-5]:R[2]C[-5]^{1,2}),1,3)"

but now trying to write VBA CODE for NROWS,NCOLUMNNS]

i hop i wil get direction from this group

many thanks in advance 4 ur efrts n time