Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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# Economics

## Engineering economics - cash flow diagrams, present value, discount rates, internal rates of return - IRR, income taxes, inflation.

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### Accounting Rate of Return

Net income vs net investment.

### Bid Work Flow Template

A bid work flow template - Online with Google Docs.

### Cars - New vs. Old Car Cost Calculator

Calculate and compare the costs between owning a new vs. an old car.

### Cash Flow Diagrams

The future value of money.

### Compound Interest Tables

Compound interest tables - interests rates 0.25 - 60%.

### Discount Rates

The effect of single vs. multiple discounts.

### Discrete Compounding Cash Flow Formulas

Discrete payments compounding equations and online calculators .

### Effective Interest Rate vs. Nominal Interest Rate

Effective interest rate vs. nominal interest rate in sub-periods.

### Income Tax

Income tax vs. taxable income.

### Inflation Rate

Future value of money vs. inflation.

### Interest Formulas

Future value of single cash flow.

### Interest Rate

Interest rate is the cost of money.

### Internal Rate of Return - IRR

Internal Rate of Return (IRR) - the break-even interest rate.

### Investments in Renewable Energy

Calculate investments in renewable energy.

### Markup and Gross Profit

Profit vs. markup.

### Net Income

Operating profit after tax.

### Net Present Worth (NPW) of a Cash Stream

The value of a stream of payments is called the Net Present Worth (NPW).

### Operating Profit

Profit is made when revenue exceeds costs.

### Payback Time

Investments and payback time.

### Percentage

Working with relative values.

### Perpetuities

An asset providing a fixed cash flow.

### Present Value

The value of money in the future is the Present Value.

FOB, CFR ...

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## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

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