In the calculator, simply use it as you would any other number, though you can’t use your keyboard to put it in - click on the bolded “i” box instead.įactorials are odd beasts that don’t show up very frequently but are important when you need them. Mathematicians have called this number “ i”, wherein ( i 2 = -1) To avoid confusion with the symbol for electrical current, in electrical engineering we frequently use “j” instead of “ i”. Yet sometimes, you need something that, somehow, when multiplied by itself, gives a negative number. Specifically, any number squared will be a positive number, as it’ll either be a positive number multiplied by itself, yielding another positive number, or a negative number multiplied by itself, again yielding a positive number. Whenever you multiply a negative number with a negative number, the result is a positive number. To use this function, click the “atan” button of this scientific calculator. The range of the arctangent function is from -90° to +90°. The inverse tangent (arctangent) trigonometric function can be used to determine the angle of a tangent value from a domain covering all real numbers. The domain of the arccosine function is just the same with the arcsine function but its range is from 0 to +180°. To use this function, just click the “acos” button of this scientific calculator. The inverse cosine (arccosine) trigonometric function can be used to determine the angle of a cosine value. The domain of an inverse sine function is from -1 to +1 and the range is from -90° to +90°. This can be used in this scientific calculator by clicking the “asin” button. The inverse sine (arcsine) trigonometric function can be used to determine the angle of a sine value. The cotangent function is a reciprocal of the tangent function. This function can be used in this scientific calculator by clicking the “tan” button. The tangent function relates the angle of a right-angled triangle to the ratio of the length of the side opposite the angle and the side adjacent to the angle. The secant function is a reciprocal of the cosine function. It can be used in this scientific calculator by clicking the “cos” button. The cosine function is another trigonometric function that can be used to relate the angle of a right triangle to the ratio of the length of the side adjacent to the angle and the hypotenuse. The cosecant function is a reciprocal of the sine function.
The sine function can be used in this scientific calculator by clicking the “sin” button. In a right-angled triangle, the sine function can be used to relate the angle to the ratio of the length of the side opposite the angle and the hypotenuse. Here are the trigonometric functions that you will encounter as you study mathematics and engineering: It could be as simple as solving an unknown value of a right-angled triangle or solving the instantaneous power absorbed by an electrical element. Trigonometric functions: In mathematics and in various fields of engineering, trigonometric functions are frequently used to solve different problems. Which is supposedly called an “obelus” - who knew? (x / y) Division, sometimes referred to as the quotient, is sometimes shown as a fraction, a “/” or the “÷” symbol.
(x * y) Multiplication, the product or “times” is represented sometimes by an “x” and sometimes by an asterisk “*”. (x - y) Subtraction, the “minus” sign, or sometimes difference, is used to find the numerical separation between two numbers, thus the term “difference”. (x + y) Addition, also known as summing or, more colloquially, “plus” is used to sum numbers together.
ENGINEERING CALCULATOR ONLINE PORTABLE
This calculator is optimized for either desktop or mobile use, making it a portable powerhouse or a reliable at-the-desk tool.īasic operations: Even the most advanced scientific calculator needs the basics in order to be useful - here are the most commonly used and basic functions: With the inclusion of many different features, easy access to a wide variety of scientific constants. This free, easy-to-use scientific calculator can be used for any of your calculation needs but it is specialized for usage by engineers and scientists.
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