Calculating device, calculation program, recording medium, and calculation method

A calculating device, comprising a processor configured to perform repeating a processing procedure,

• the processing procedure including a first variable update and a second variable update,
• the first variable update including updating an ith entry of a first variable xi by adding an ith entry of a first function to the ith entry of the first variable xi before the first variable update (i being an integer not less than 1 and not more than N, and N being an integer of 2 or more), the ith entry of the first variable xi being one of a first variable set {x}, a variable of the ith entry of the first function including an ith entry of a second variable yi, the ith entry of the second variable yi being one of a second variable set {y}, the ith entry of the first function being one of a first function set,
• the second variable update including updating the ith entry of the second variable yi by adding an ith entry of a second function and an ith entry of a third function to the ith entry of the second variable yi before the second variable update, a variable of the ith entry of the second function including the ith entry of the first variable xi, a variable of the ith entry of the third function including at least a part of a first parameter set {J} and at least a part of the first variable set {x}, the ith entry of the second function being one of a second function set, the ith entry of the third function being one of a third function set,
• a variable of the first function set including a calculation parameter, the calculation parameter being different before and after the processing procedure,
• the processor being configured to perform at least an output of at least one of the ith entry of the first variable xi obtained after the repeating of the processing procedure or a function of the ith entry of the first variable xi obtained after the repeating of the processing procedure.