Class LinearOptimizationService
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ذخیره و طبقه‌بندی محتوا براساس اولویت‌های شما.
سرویس بهینه سازی خطی سرویس بهینه سازی خطی که برای مدل سازی و حل برنامه های خطی اعداد صحیح مختلط و خطی استفاده می شود. مثال زیر برنامه خطی زیر را حل می کند:
دو متغیر x و y :
0 ≤ x ≤ 10
0 ≤ y ≤ 5
محدودیت ها:
0 ≤ 2 * x + 5 * y ≤ 10
0 ≤ 10 * x + 3 * y ≤ 20
هدف:
x + y را به حداکثر برسانید
const engine = LinearOptimizationService.createEngine();
// Add variables, constraints and define the objective using addVariable(),
// addConstraint(), etc. Add two variables, 0 <= x <= 10 and 0 <= y <= 5
engine.addVariable('x', 0, 10);
engine.addVariable('y', 0, 5);
// Create the constraint: 0 <= 2 * x + 5 * y <= 10
let constraint = engine.addConstraint(0, 10);
constraint.setCoefficient('x', 2);
constraint.setCoefficient('y', 5);
// Create the constraint: 0 <= 10 * x + 3 * y <= 20
constraint = engine.addConstraint(0, 20);
constraint.setCoefficient('x', 10);
constraint.setCoefficient('y', 3);
// Set the objective to be x + y
engine.setObjectiveCoefficient('x', 1);
engine.setObjectiveCoefficient('y', 1);
// Engine should maximize the objective.
engine.setMaximization();
// Solve the linear program
const solution = 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')}`);
} خواص
| اموال | تایپ کنید | توضیحات |
|---|
Status | Status | وضعیت حل کننده |
Variable Type | Variable Type | نوع متغیرهای ایجاد شده توسط حل کننده. |
مستندات دقیق
create Engine()
یک موتور برای حل برنامه های خطی (برنامه های عدد صحیح مختلط بالقوه) ایجاد می کند.
// Creates a linear optimization engine.
const engine = LinearOptimizationService.createEngine();
engine.addVariable('x', 0, 10);
// ... بازگشت
Linear Optimization Engine - یک موتور بهینه سازی خطی
جز در مواردی که غیر از این ذکر شده باشد،محتوای این صفحه تحت مجوز Creative Commons Attribution 4.0 License است. نمونه کدها نیز دارای مجوز Apache 2.0 License است. برای اطلاع از جزئیات، به خطمشیهای سایت Google Developers مراجعه کنید. جاوا علامت تجاری ثبتشده Oracle و/یا شرکتهای وابسته به آن است.
تاریخ آخرین بهروزرسانی 2025-07-24 بهوقت ساعت هماهنگ جهانی.
[null,null,["تاریخ آخرین بهروزرسانی 2025-07-24 بهوقت ساعت هماهنگ جهانی."],[[["\u003cp\u003eThe Linear Optimization Service enables the modeling and resolution of linear and mixed-integer linear programs within Apps Script.\u003c/p\u003e\n"],["\u003cp\u003eIt provides functionalities to define variables, constraints, and objectives for optimization problems.\u003c/p\u003e\n"],["\u003cp\u003eThe service utilizes a dedicated engine, created via \u003ccode\u003ecreateEngine()\u003c/code\u003e, to process and solve the defined linear programs.\u003c/p\u003e\n"],["\u003cp\u003eSolutions can be retrieved and assessed for validity, providing values for optimized variables or indicating an infeasible solution.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can access detailed documentation and examples for utilizing the Linear Optimization Service effectively.\u003c/p\u003e\n"]]],["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"],null,["# Class LinearOptimizationService\n\nLinearOptimizationService\n\nThe linear optimization service, used to model and solve linear and mixed-integer linear\nprograms. The example below solves the following linear program:\n\nTwo variables, `x` and `y`: \n\n\n`0 ≤ x ≤ 10`\n\n\n`0 ≤ y ≤ 5`\n\n\nConstraints: \n\n\n`0 ≤ 2 * x + 5 * y ≤ 10`\n\n\n`0 ≤ 10 * x + 3 * y ≤ 20`\n\n\nObjective: \n\nMaximize `x + y`\n\n\n```javascript\nconst engine = LinearOptimizationService.createEngine();\n\n// Add variables, constraints and define the objective using addVariable(),\n// addConstraint(), etc. Add two variables, 0 \u003c= x \u003c= 10 and 0 \u003c= y \u003c= 5\nengine.addVariable('x', 0, 10);\nengine.addVariable('y', 0, 5);\n\n// Create the constraint: 0 \u003c= 2 * x + 5 * y \u003c= 10\nlet constraint = engine.addConstraint(0, 10);\nconstraint.setCoefficient('x', 2);\nconstraint.setCoefficient('y', 5);\n\n// Create the constraint: 0 \u003c= 10 * x + 3 * y \u003c= 20\nconstraint = engine.addConstraint(0, 20);\nconstraint.setCoefficient('x', 10);\nconstraint.setCoefficient('y', 3);\n\n// Set the objective to be x + y\nengine.setObjectiveCoefficient('x', 1);\nengine.setObjectiveCoefficient('y', 1);\n\n// Engine should maximize the objective.\nengine.setMaximization();\n\n// Solve the linear program\nconst solution = engine.solve();\nif (!solution.isValid()) {\n Logger.log(`No solution ${solution.getStatus()}`);\n} else {\n Logger.log(`Value of x: ${solution.getVariableValue('x')}`);\n Logger.log(`Value of y: ${solution.getVariableValue('y')}`);\n}\n``` \n\n### Properties\n\n| Property | Type | Description |\n|------------------|-------------------------------------------------------------------|------------------------------------------|\n| `Status` | [Status](/apps-script/reference/optimization/status) | Status of the solver. |\n| `Variable``Type` | [VariableType](/apps-script/reference/optimization/variable-type) | Type of variables created by the solver. |\n\n### Methods\n\n| Method | Return type | Brief description |\n|-----------------------------------|--------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------|\n| [createEngine()](#createEngine()) | [LinearOptimizationEngine](/apps-script/reference/optimization/linear-optimization-engine) | Creates an engine to to solve linear programs (potentially mixed-integer programs). |\n\nDetailed documentation\n----------------------\n\n### `create``Engine()`\n\nCreates an engine to to solve linear programs (potentially mixed-integer programs).\n\n```javascript\n// Creates a linear optimization engine.\nconst engine = LinearOptimizationService.createEngine();\nengine.addVariable('x', 0, 10);\n\n// ...\n```\n\n#### Return\n\n\n[LinearOptimizationEngine](/apps-script/reference/optimization/linear-optimization-engine) --- a linear optimization engine"]]
