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How many calorie make one pound?
If you calculate your BMR this will tell you how many calories your body needs a day to maintain its weight. If you then consume 500 extra calories a day for a full week you should gain around a pound in weight. So I would say the answer is 3500 calories.
How do you calculate gain and loss on a stock call option?
You take the whole value. For example: You bought the call for $1 which x 100 equals $100. You then sold it for $2 which x 100 equals $200. Take $100 from $200 and you are left with a gain or $100.
Difference between controllers and compensators in control system?
A compensator is a controller meant to improve characteristics of the open-loop plant so that it can safely be used with feedback control. For example, there is a (parasitic) feedback system in a commercial audio system (e.g., in a theater) formed from a microphone, the soundboard connected to it, and the speakers in the theater connected to the soundboard. If the microphone is positioned in certain locations near the speakers and there is enough gain in the system, a single tone (and possibly its higher harmonics) can be reinforced by the feedback system causing it to grow and grow until it is deafeningly loud. It is then the sound engineers' job to "compensate" this system at the soundboard by adjusting the system's gain and phase characteristics around that particular frequency. So here, the soundboard is certainly a controller (compensation is a control topic), but the controller is not responsible for tracking or regulation. Instead, it is enforcing stability of the closed-loop system at all frequencies.
Differences between Forwards and Futures?
Forward contracts are very similar to futures contracts, except they are not marked to market, exchange traded, or defined on standardized assets. Forwards also typically have no interim partial settlements or "true-ups" in margin requirements like futures - such that the parties do not exchange additional property securing the party at gain and the entire unrealized gain or loss builds up while the contract is open. A forward contract arrangement might call for the loss party to pledge collateral or additional collateral to better secure the party at gain. (Wikipedia)
What does the idiom go to great pains mean?
The expression is go to great lengths or take great pains or be at pains to accomplish something, meaning to make a special effort, or show something clearly so that everyone will understand. No pain, no gain as Jane Fonda used to say!
