Problem 2250. Given a number find two variables

Created by Reza Ahmadzadeh

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If the input is x, find a and b from the following equation: x = a*2^b.

Hint: b is an integer while x and a are real numbers.

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Last Solution submitted on Dec 02, 2024

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William on 14 Feb 2016

b=0. a=x.

Rafael S.T. Vieira on 28 Aug 2020

Brute-force on b, while looking for solutions with a restricted to the interval [-1,1] works. And I agree there is more than one solution. The author should specify what is the interval for valid solutions or accept more than one valid answer (which is easy to verify).

Dyuman Joshi on 23 Feb 2022

Just a heads up - OP expects solvers to use a particular function

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Problem 2250. Given a number find two variables

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Last 200 Solutions

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Problem 2250. Given a number find two variables

Solution Stats

Last 200 Solutions

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Registration Now Open for MathWorks AUTOMOTIVE CONFERENCE 2025

Problem Recent Solvers56

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