Grazie per aiuto
mi spiace che dubiti di cosa ti dico.
Io invece credo cosa mi dici tu
Ho segnato h al posto di xx perche' xx non viene accettata.
Armando
2018-02-15 10:37 GMT+01:00 Enrico Maria Giordano <
e.m.giordano@xxxxxxxxxxxxxxx>:
Il 15/02/2018 10:23, Enrico Maria Giordano ha scritto:
Prova con LN.
LN
The inverse of an exponential function is a logarithmic function: the
logarithm (to base a) of a number x is the power to which you have to raise
a to get the number x, and it is written logax. Thus by definition
alogax=x; and it is also true that log (ax)=x.
You may well already know how to use base 10 logarithms for doing
multiplications; these are called common logarithms. The ZX Spectrum has a
function LN which calculates logarithms to the base e; these are called
natural logarithms. To calculate logarithms to any other base, you must
divide the natural logarithm by the natural logarithm of the base:
logax = LN x/ LN a
EMG
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