Solving Equations Numerically
Description
If it is not possible to find an exact solution to an equation or equations specified, one can use find_root to find a numerical solution. For example, solve does not return anything interesting for the following equation:
sage: theta = var('theta')
sage: solve(cos(theta)==sin(theta), theta)
Sage Cell
Code
phi = var('phi')
find_root(cos(phi)==sin(phi),0,pi/2)
Options
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Tags
Primary Tags: Precalculus: Algebra of real numbers and simplifying expressions
Secondary Tags: Algebra of Real Numbers and Simplifying Expressions: Solving algebraic equations
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Author: Sage Tutorial v7.6
Date: 08 Jul 2017 07:51
Submitted by: Tom Judson