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Assume you have a rectangular area such as a room and, for example, you want to calculate the square footage area for flooring or carpet. The way to calculate a rectangular area is by measuring the length and width of your area then multiplying those two numbers together to get the area in feet squared (ft2).
To calculate the natural logarithm of a number, enter the number and press the LN key. To calculate the natural logarithm of a calculated result, simply press the LN key. To calculate the natural logarithm of 3, press 3 LN To calculate the logarithm to any other base, calculate the natural logarithm and then divide by the natural logarithm of the base. To calculate the base-10 logarithm of 3, press 3 LN / 1 0 LN =
Using the Windows calculator in scientific view, we get:
17^23 = 19,967,568,900,859,523,802,559,065,713
which is 29 digits long, ie much longer than the capacity of most calculators.
Because both 17 and 23 are prime numbers, it isn't possible to simplify this calculation, so you will need to use find a calculator that has sufficient capacity to be able to handle numbers of this length.
The xnumbers add-in for Microsoft Excel can also be useful for this sort of calculation (do an internet search for it).
Using the Windows calculator, MOD55 of the above number is 18.
The [MODE] key can be used to select the modes described below. Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here. 1) Calculation Modes Before performing a calculation, you first need to select the appropriate calculation mode. COMP: Basic arithmetric calculations (arithmetic operations, trigonometric functions, etc.) COMPLEX: Complex number calculations SD: Single-variable statistical calculations (sample standard deviation, etc.) LR or REG: Paired-variable statistical calculations (linear regression statistical calculations, etc.) BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations MAT: Matrix calculations (determinants, etc.) VCT: Vector calculations EQU: nth degree equations, simultaneous equations 2) Display Settings Use these settings to control how calculation results are displayed. Note that changing the Fix and Sci settings does not affect internal calculation results. Norm: Exponential display format and cancels the currently configured Fix and Sci settings. Fix: Specifies a fixed number of digits to the right of the decimal place. Sci: Specifies a fixed number of significant digits. 3) Angle Unit Setting (90°=?/2 radians=100 grads) Deg: Degrees Rad: Radians Gra: Grads 4) Engineering Mode Use this mode when you want to input and perform calculations using engineering symbols.
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calculators are repaired in watch works...they will give u a better service for calculators...if it s scientific calculators..then giv it to the computer service providers....but usually there s very few service providers can been seen for repairing the calculators...since it doesnt cost much!!!!
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