13 lines
416 B
Markdown
13 lines
416 B
Markdown
https://www.youtube.com/watch?v=sULa9Lc4pck
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$$log_a(b) $$
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Pronounced log *base* a, this function is used to figure out what exponent you need to raise $a$ to to get $b$.
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$log_ab = c$ can be rewritten as $a^c = b$.
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$$ 5^{log_5^(x+2)}=x+2 $$
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By default, $log$ refers to $log_{10}$. $ln$ is shorthand for $log_e$.
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$$ \sqrt{x} = x^{1/2} $$
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To get the reciprocal of a value, change the sign of the exponent.
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$$ x = |