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2. Calculator - Wikipedia

   en.wikipedia.org/wiki/Calculator

   An electronic pocket calculator with a seven-segment liquid-crystal display (LCD) that can perform arithmetic operations. A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics .

3. Pascal's calculator - Wikipedia

   en.wikipedia.org/wiki/Pascal's_calculator

   Pascal's calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen. [2] He designed the machine to add and subtract two numbers ...

4. Software calculator - Wikipedia

   en.wikipedia.org/wiki/Software_calculator

   A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device. They are among the simpler interactive software tools, and, as such, they provide operations for the user to select one at a time. They can be used to perform any process that consists of a sequence of steps each of ...

5. Systematic investment plan - Wikipedia

   en.wikipedia.org/wiki/Systematic_Investment_Plan

   A systematic investment plan (SIP) is an investment vehicle offered by many mutual funds to investors, allowing them to invest small amounts periodically instead of lump sums. The frequency of investment is usually weekly, monthly or quarterly.

6. Investment (macroeconomics) - Wikipedia

   en.wikipedia.org/wiki/Investment_(macroeconomics)

   Investment (macroeconomics) In macroeconomics, investment "consists of the additions to the nation's capital stock of buildings, equipment, software, and inventories during a year" [1] or, alternatively, investment spending — "spending on productive physical capital such as machinery and construction of buildings, and on changes to ...

7. Merton's portfolio problem - Wikipedia

   en.wikipedia.org/wiki/Merton's_portfolio_problem

   For Merton’s one-period portfolio problem, see Mutual fund separation theorem. Merton's portfolio problem is a problem in continuous-time finance and in particular intertemporal portfolio choice. An investor must choose how much to consume and must allocate their wealth between stocks and a risk-free asset so as to maximize expected utility.