خدمة الاستمثال الخطي، المستخدَمة لإنشاء نماذج وحلّ برمجيات خطية وبرمجيات خطية كليّة جزئية
يحلّ المثال التالي البرنامج الخطي التالي:
متغيّران، x وy: 0 ≤ x ≤ 10 0 ≤ y ≤ 5
القيود: 0 ≤ 2 * x + 5 * y ≤ 10 0 ≤ 10 * x + 3 * y ≤ 20
الهدف:
زيادة x + y إلى أقصى حدّ
constengine=LinearOptimizationService.createEngine();// Add variables, constraints and define the objective using addVariable(),// addConstraint(), etc. Add two variables, 0 <= x <= 10 and 0 <= y <= 5engine.addVariable('x',0,10);engine.addVariable('y',0,5);// Create the constraint: 0 <= 2 * x + 5 * y <= 10letconstraint=engine.addConstraint(0,10);constraint.setCoefficient('x',2);constraint.setCoefficient('y',5);// Create the constraint: 0 <= 10 * x + 3 * y <= 20constraint=engine.addConstraint(0,20);constraint.setCoefficient('x',10);constraint.setCoefficient('y',3);// Set the objective to be x + yengine.setObjectiveCoefficient('x',1);engine.setObjectiveCoefficient('y',1);// Engine should maximize the objective.engine.setMaximization();// Solve the linear programconstsolution=engine.solve();if(!solution.isValid()){Logger.log(`No solution ${solution.getStatus()}`);}else{Logger.log(`Value of x: ${solution.getVariableValue('x')}`);Logger.log(`Value of y: ${solution.getVariableValue('y')}`);}
تاريخ التعديل الأخير: 2024-12-22 (حسب التوقيت العالمي المتفَّق عليه)
[[["يسهُل فهم المحتوى.","easyToUnderstand","thumb-up"],["ساعَدني المحتوى في حلّ مشكلتي.","solvedMyProblem","thumb-up"],["غير ذلك","otherUp","thumb-up"]],[["لا يحتوي على المعلومات التي أحتاج إليها.","missingTheInformationINeed","thumb-down"],["الخطوات معقدة للغاية / كثيرة جدًا.","tooComplicatedTooManySteps","thumb-down"],["المحتوى قديم.","outOfDate","thumb-down"],["ثمة مشكلة في الترجمة.","translationIssue","thumb-down"],["مشكلة في العيّنات / التعليمات البرمجية","samplesCodeIssue","thumb-down"],["غير ذلك","otherDown","thumb-down"]],["تاريخ التعديل الأخير: 2024-12-22 (حسب التوقيت العالمي المتفَّق عليه)"],[[["The Linear Optimization Service enables the modeling and resolution of linear and mixed-integer linear programs within Apps Script."],["It provides functionalities to define variables, constraints, and objectives for optimization problems."],["The service utilizes a dedicated engine, created via `createEngine()`, to process and solve the defined linear programs."],["Solutions can be retrieved and assessed for validity, providing values for optimized variables or indicating an infeasible solution."],["Developers can access detailed documentation and examples for utilizing the Linear Optimization Service effectively."]]],["The `LinearOptimizationService` solves linear and mixed-integer linear programs. Key actions include creating an engine via `createEngine()`, adding variables (e.g., 'x', 'y') with bounds using `addVariable()`, and defining constraints with `addConstraint()` and `setCoefficient()`. The objective is set using `setObjectiveCoefficient()`, specifying maximization with `setMaximization()`. Finally, `solve()` computes the solution, and results are accessed via methods such as `getVariableValue()`. The service also includes properties like `Status` and `VariableType`.\n"]]