Calculators

From math class, some trigonometric identities:

cot x = 1/tan x

csc x = 1/sin x

sec x = 1/cos x

There are no built-in cot or csc formulas, so use the above.

Remember that these give errors when tan x, sin x, or cos x are equal to 0.

yes

ABACUS is a name of a calculating apparatus - it is not an acronym.

I don't believe the graphic calculator has a cosine regression tool, but if you go to STAT, and CALC, there is a sin regression tool. If you hit enter on that then insert your L values, it will come up with a sin regression. The sin regression should be the same as a cosine regression, except that the sin regression should have a different value of C, usually getting rid of the value of C altogether will give you the correct regression.

umm obviously "boob" umm obviously "boob"

Press MATH. Then go down to the last option, which says "Solver...". Press Enter. If you do not see "eqn:0=" then press the up arrow until you do. Now type your quadratic equation in. It will automatically be set equal to zero. (Use the button to the left of ALPHA for a variable, or use a capital letter as your variable(s). Put the cursor over the value next to the variable you want to solve for. Then press ALPHA and then SOLVE (the ENTER key. Notice that SOLVE is written in green above the ENTER key.) You will get an answer. Type in other values next to the variable to solve for other possible answers. You will normally get the answer closest to the one that is next to the variable before you press solve.

import java.io.*;

import java.util.*;

public class Calculator

{

public static void main(String args[])

{

System.out.println("Make your arithmetic selection from the choices below:\n");

System.out.println(" 1. Addition");

System.out.println(" 2. Subtraction");

System.out.println(" 3. Multiplication");

System.out.println(" 4. Division\n");

System.out.print(" Your choice? ");

Scanner kbReader = new Scanner(System.in);

int choice = kbReader.nextInt();

if((choice<=4) && (choice>0))

{

System.out.print("\nEnter first operand. ");

double op1 = kbReader.nextDouble();

System.out.print("\nEnter second operand.");

double op2 = kbReader.nextDouble();

System.out.println("");

switch (choice)

{

case 1: //addition

System.out.println(op1 + " plus " + op2 + " = " + (op1 + op2) );

break;

case 2: //subtraction

System.out.println(op1 + " minus " + op2 + " = " + (op1 - op2) );

break;

case 3: //multiplication

System.out.println(op1 + " times " + op2 + " = " + (op1 * op2) );

break;

case 4: //division

System.out.println(op1 + " divided by " + op2 + " = " + (op1 / op2) );

}

}

else

{

System.out.println("Please enter a 1, 2, 3, or 4.");

}

}

}

You set the input number by sliding the center sliding part arrow, to align with a number on the static part. There are many scales along the ruler, where you can pick off the answer by reading across.

Particular integral is finding what the integral is for example the integral of 2x is x^2 + C. Finding the particular solution would be finding what C equals from the particular integral.

No. An irrational number is one that does not repeat or finish, and a calculator cannot display millions of digits like an irrational number would have.

Hi,

I may be wrong and correct me if i am. Work is the force applied over a distance: F x d.

So to calculate the work of a spiral spring it would be the spring coefficient (usually denoted as "k") times the distance. But you have to remember that the spring force is kxd, so you have to integrate the force over the distance, which will yield the following equation: work is equal to 1/2 the spring constant times the distance squared.

W=(1/2) k d2

Some calculators have a "x10x" button.

A periodic real-time task is any task where there is a set amount of time allocated to a regularly repeated task whereas an aperiodic task is any task that occurs from a randomly occurring event.

The SE edition

empl;oyed what?

Yes. To access it, press [Math], scroll over to PRB [>] [>] [>] [>], and select option [4].

Balance sheet and income statement

It means ya mum

Press Window and scroll down to Xres. Change it to 2. Then press GRAPH. If the asymptotes still do not appear, increase the Xres number by one until they do. (It cannot go higher than eight.)

In the real numbers, the logarithm is only defined for positive numbers. The logarithm of zero or a negative number is undefined. (For calculators who work with complex number, only the logarithm of zero is undefined.) This follows from the definition of the logarithm, as the solution of:

10x = whatever

"Whatever" is the number of which you want to calculate the logarithm. Since 10x is always positive, that means you can't find an "x" such that the power results in a negative number, or in zero.

The same applies if you use a base other than 10, for example the number e = 2.718...

You can find a car valuation calculator online at the NADA website or the Kelly Blue Book website. You can also check Edmunds or some of the car dealer sites.

There are no cheats. You have to do the math yourself.

use a calculator!

This is what I did. Slide the bar from OFF to ITEM. Hit the blue button on the left TIME/DATE, then hit the equals (=) sign to set the date and time. Slide the bar from ITEM to OFF. When I want to print the date on my till tape, I hit TIME/DATE. (Once, prints the date and a second hit prints prints the time.) Hit CE/C to get $0.00 to display and ready to calculate.