#🔒 Why in fibanacci lecture , the lecturer wrote 1 and 2 on f(3) and f(2)

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gusty widget
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Same as title

PXL_20250810_073809673.jpg
hidden lakeBOT
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@gusty widget

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rustic python
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Because fib(3) is 2 and fib(2) is 1.

gusty widget
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f(n) = f(n-1) + f(n-2)

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that's why?

rustic python
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f(2) = f(2-1) + f(2-2)
f(2) = f(1) + f(0)
f(2) = 1 + 0
f(2) = 1

gusty widget
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and then what about f(3)?

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why its two tho

lofty depot
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substitute 3 in

gusty widget
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f(3) = f(3-1) + f(3-2)

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f(3) = 1 + 1

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f(3) = 2

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oh yeh

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fug

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I got it

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I forgot to subsitute it

rustic python
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No, f(3-1) is f(2) that is 1

lofty depot
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its f(2) + f(1)

gusty widget
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f(3) = f(2) + f(1)

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f(2) = 1
f(1) = 1

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f(3) = 1+1

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f(3) = 2

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is it right?

rustic python
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yes

gusty widget
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yeh got I got it

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thank you guys @lofty depot @rustic python

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I apperciate the help

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🙏

whole bane
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Looks like you're learning recursion and memoization?

gusty widget
whole bane
gusty widget
hidden lakeBOT
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