Estimating a square root.
2 answers:
The way that cheap calculators do it is with Newton's approximation.
x=√n
x^2=n
x^2-n=0
Newton's approximation is:
x-f(x)/(dy/dx)
x-(x^2-n)/(2x) which if you include the improved approximation
(2x^2-x^2+n)/(2x)
x↔(x^2+n)/(2x)
It converges very quickly to the exact answer (if there is one) with relatively few iterations...
For example: √5 ? take an initial guess of 2 and you get:
(x^2+5)/(2x)
2, 2.25, 2.2361, 2.2360, 2.236067977499
I'm sorry but I'm not into square roots yet :(
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If the 1m turns into 3m then he cm increases also by 3.The 3 meters would equal 300 cm.
Answer:
two is the last one, three us the first one, and four is the second one, and six is the definition of parallelogram
Answer:a
Step-by-step explanation:
Well when you add up all three angles of a triangle you should get 180 degrees.
f(x) = 3 - 2sin(x)
0 = 3 - 2sin(x)
- 3 - 3
-3 = -2sin(x)
-2 -2
1¹/₂ = sin(x)
sin⁻¹(1¹/₂) = sin⁻¹[sin(x)]
sin⁻¹(1¹/₂) = x
