![]() ![]() On the the result from the previous line. If the first thing you enter on a line is multiply, divide, add, subtract or exponent, it assumes you want to work Since there are no parentheses, the calculator executes it from left to right so it operates as though you meant (1/2)sin(.5). For example if you enter 1/2sin(.5) the calculator inserts a multiply between the 2 and the sin. For exampleģcos(2.1) will be automatically treated as if you entered 3*cos(2.1): three times the cosine of 2.1 If a function (such as sin() ) is preceded by a number, the calculator assumes you want to multiply them. You get 3 digits after the zeros after the point, or 1.00278.Īutomatic Features Automatic multiplication It controls the number of significant digits after the point.įor example, if the result was 1.002782, and you displayed 3 digits Internally, all calculations are performed and stored using the maximum possible precision.įor example, with three digits displayed, enterĪnd you will see that the result is 10, not 9.999. Using this control, you can select how many significant digits are displayed in the results. If entering this from the keyboard, enter the three letters: a n s. Pressing the ans button inserts the result from the previous line into the formula. Using a memory that has nothing in it results in an error. ![]() On the keyboard enter the letter a,b,c or d. To use the contents of a memory in a calculation, simply click on the corresponding memory button and its value Pressing "CLR" also clears the memory locations. If you hover the mouse over the button it will show the current value stored in it. When a memory contains a value, there is a dark border around the memory button. When you press 'set' the current result is copied into that memory. There are four memory locations you can use to store temporary results, named A,B,C and D. The three constants keys enter the values at high precision (even if only 3 digits are displayed). ![]() If the calculator is in degrees mode, then tan(90), tan(270) etc will in fact produce an error, since they are undefined. However, pi in a computer is an approximation, with the result that tan(pi/2) calculates to a very large number instead. Tan() special note: If you calculate tan(pi/2) it should be an error since the tan of a right angle is undefined. * Note: The six trigonometry functions will operate in degrees or radians depending on the setting of the control Returns the smallest integer greater than or equal to x Returns the highest integer less than or equal to x Returns x rounded off to the nearest whole number Returns the absolute value of x (always positive) They can be entered by typing them on the keyboard only. The following functions have no buttons on the calculator. When you enter a function from the screen buttons, the first parenthesis is entered for you.įor example when you press the cos button, it enters " cos ("Į (approx 2.718) raised to the power of x. The function has an argument which must be in parentheses, for example tan(12). The table below shows what to type for each function. type it in on the keyboard, for example: s i n (.pressing the function button on the screen with the mouse, for example: sin.S q r t ( 3 ^ 2 + 4 ^ 2 ) enter Functions Or type it in on the keyboard using the full function names (see below) Type in the formula as you would say it, then press = or the keyboard Pressing the buttons on the calculator with the mouse, It supports functions for algebra and trigonometry.Įnter a formula either by typing on the keyboard (see keyboard input below), This is a free online math/scientific calculator similar to those from TI, Casio, HP and others.
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