log_inv — Arithmetic

Computes the inverse logarithm

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Interface

#include <codecogs/maths/combinatorics/arithmetic/log_inv.h>

using namespace Maths::Combinatorics::Arithmetic;

double log_inv(double base, double result)

Function to compute the inverse logarithm, by feeding it with the base and the result.

Example 1

Computing

$$\log_{10} x = 2$$

(1)

#include <cstdio>
#include <codecogs/maths/combinatorics/arithmetic/log_inv.h>

int main()
{
  printf("Inverse logarithm of base 10 resulting 2: %.0f ", Maths::Combinatorics::Arithmetic::log_inv(10, 2));
  return 0;
}

Output:

Inverse logarithm of base 10 resulting 2: 100

It will return -1 for incorrect base input ( good input goes from +1* to +infinite).

* - +1 means the first number right after 1 (ie. 1,0001).

Parameters

base

Any value above 1

result

Any value (even negative)

Returns

The value to apply the logarithm operator ( log x )

Interactive Calculator

base

result

Result –