Regula falsi - Wikipedia
https://en.wikipedia.org/wiki/Regula_falsiIn mathematics, the regula falsi, method of false position, or false position method is a very old method for solving an equation with one unknown; this method, in modified form, is still in use. In simple terms, the method is the trial and error technique of using test ("false") values for the variable and then adjusting the test value according to the outcome. This is sometimes also referred to as "guess and check". Versions of the method predate the advent of algebraand the u…
Regula-Falsi Method
math.iitm.ac.in › public_html › sryedidaNow the next smaller interval which brackets the root can be obtained by checking. f(a) * f(b) < 0 then b = c > 0 then a = c = 0 then c is the root. Selecting c by the above expression is called Regula-Falsi method or False position method.