Question about Photography

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The number to which you refer is the relative aperture, or focal ratio. The value of the largest aperture available with a given lense. The larger the aperture, the more light and the ability to focus on closer subjects, at the sacrifice of depth of field. Smaller aperture lenses are more useful where closeup detail is not required. I hope that answers your question.

Posted on Jan 27, 2008

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Posted on Jan 02, 2017

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The fx-991ES does not do indefinite integrals.

For definite integrals, use the [integral] key just below and left of the big round cursor pad. For example, to calculate the definite integral of x^2 dx from 0 to 1, press [integral] [alpha] [X] [cursor-right] [0] [cursor-right] [1] [=]. After about a second you should see 1/3.

For definite integrals, use the [integral] key just below and left of the big round cursor pad. For example, to calculate the definite integral of x^2 dx from 0 to 1, press [integral] [alpha] [X] [cursor-right] [0] [cursor-right] [1] [=]. After about a second you should see 1/3.

Dec 20, 2014 | Casio Office Equipment & Supplies

There are several ways of doing this.

Since you're using a graphing calculator, you can always graph it as a function of 'a' and use the graphical tools.

Another way is to use the solve() function. For example, to find the value of a where the integral of sin(x) from 0 to a equals one, enter

solve(fnInt(sin(X),X,0,A)-1),A,1.5)

solve( and fnInt( are accessible through the CATALOG. The 1.5 is an initial guess.

Since you're using a graphing calculator, you can always graph it as a function of 'a' and use the graphical tools.

Another way is to use the solve() function. For example, to find the value of a where the integral of sin(x) from 0 to a equals one, enter

solve(fnInt(sin(X),X,0,A)-1),A,1.5)

solve( and fnInt( are accessible through the CATALOG. The 1.5 is an initial guess.

Apr 19, 2014 | Texas Instruments TI-84 Plus Silver...

If you are calculating **Integral ((x^3+2)^2* 3x^2*dx) **define X=x^3+2, dX=3.x^2 dx, integral becomes Integral (X^3.dX)=X^3/3=**(1/3)(x^3+2)^3**

If you are calculating** Integral ((x^3+2)^2* 3x^4*dx)**, develop the binomial, and use the rule for the integral of a power to integrate each term in the polynomial of degree 10 that you obtain. **I will leave this for you to do.**

If you are calculating

Dec 15, 2013 | Bagatrix Precalculus Solved Full Version...

Change variable x+2 =X, dx=dX, x= X-2

Integral (3, 2) (X-2)^2 * X^4 dX.

Develop the square and integrate term by term using the general rule for a power function X^n -------> X^(n+1)/(n+1)

Here is screen capture for the indefinite and the definite integrals

Integral (3, 2) (X-2)^2 * X^4 dX.

Develop the square and integrate term by term using the general rule for a power function X^n -------> X^(n+1)/(n+1)

Here is screen capture for the indefinite and the definite integrals

Dec 06, 2013 | Office Equipment & Supplies

To calculate the definite integral (integral with specified lower and upper bounds)

Another way is to graph the function. While graph is displayed press SHIFT: F5:G-Solve, then F6>, Then F3:$(

Use arrow key to select the lower bound, then select select the upper bound. Press = to get result. The area concerned will appear shaded.

Note: There is a drawback to this method. The lower and upper limits must be inside the graph window limits.

- In Run/Math screen press OPTN
- Press F4:CALC
- Press F4:$ (integral)
- After the $( type in the function of X, enter comma, enter the lower bound, comma, upper bound, right parenthesis to close.
- Press =

Another way is to graph the function. While graph is displayed press SHIFT: F5:G-Solve, then F6>, Then F3:$(

Use arrow key to select the lower bound, then select select the upper bound. Press = to get result. The area concerned will appear shaded.

Note: There is a drawback to this method. The lower and upper limits must be inside the graph window limits.

Apr 30, 2012 | Casio FX-9860G Graphic Calculator

What are you trying to do? The syntax you use depend on what you want to achieve.

Indefinite integral : Integral( ln(x),x) gives the correct answer xln(x)-x

Definite integral : Integral(ln(x),x,1,2) gives the integral of ln(x) between x=1 and x=2

Definite integral between 1 and y : Integral (ln(x), x,1,y) gives the correct expression yln(y)-y +1

By inserting the =0 you are in fact assigning the result of the integration to value 0, and the calculator calculates the integral and assigns 0 to it. This is what my TIVoyage 200 PLT gives me:

{Integral((lnx),x,1) = 0.} returns {x.ln(x)-x+1=0}

which is an equation.

Indefinite integral : Integral( ln(x),x) gives the correct answer xln(x)-x

Definite integral : Integral(ln(x),x,1,2) gives the integral of ln(x) between x=1 and x=2

Definite integral between 1 and y : Integral (ln(x), x,1,y) gives the correct expression yln(y)-y +1

By inserting the =0 you are in fact assigning the result of the integration to value 0, and the calculator calculates the integral and assigns 0 to it. This is what my TIVoyage 200 PLT gives me:

{Integral((lnx),x,1) = 0.} returns {x.ln(x)-x+1=0}

which is an equation.

Apr 17, 2011 | Texas Instruments TI-89 Calculator

To do this on the TI NSpire:

- Press [HOME] [1]
- Press [CATALOG] [1] [I] and scroll down until the integral symbol or integral( function is located. Press [ENTER] on either function.
- Input: x sin x, x, -1, 3
- Press [ENTER].

Jan 23, 2011 | Texas Instruments TI-Nspire Graphic...

If you want to compute the integral, use the fnInt( function on the MATH menu. If you want the integral sign in a string, forget it.

Apr 30, 2010 | Texas Instruments TI-84 Plus Silver...

The calculator does not give a result of an integration with a constant. The form of the result will depend ob the EXACT/APPROXIMATE mode you have selected.

In the following screen capture, your integral has been evaluated with mode set to EXACT,AUTO, and APPROXIMATE. Pay attention to the syntax.

To set the computational mode to EXACT, press the MODE button use the Function keys F1,F2 or F3 to move from page to page, point to EXACT/APPROX and use the right arrow key to unfold the submenu, then the Up or Down arrow to select AUTO, EXACT or APPROXIMATE and press ENTER to SAVE Configuration.

If the integral cannot be found in EXACT mode, the calculator will echo the command without calculating the integral.

In the following screen capture, your integral has been evaluated with mode set to EXACT,AUTO, and APPROXIMATE. Pay attention to the syntax.

To set the computational mode to EXACT, press the MODE button use the Function keys F1,F2 or F3 to move from page to page, point to EXACT/APPROX and use the right arrow key to unfold the submenu, then the Up or Down arrow to select AUTO, EXACT or APPROXIMATE and press ENTER to SAVE Configuration.

If the integral cannot be found in EXACT mode, the calculator will echo the command without calculating the integral.

Apr 26, 2010 | Texas Instruments TI-89 Calculator

Hello,

Configure the calculator to be in MathIO : [SHIFT][MODE][1:MathIO].

Press the Integral key, the one judt beloe the [ALPHA] key.

The template of the integral appears, with the cursor in larger rectangle. Enter the function the screen displays the integral, a small upper sqaure, and a small lower square. The left parenthesis of the function is already supplied by the calculator.

Press [ALPHA] X to enter the argument of the function.

Press the right parenthesis.

Remain the limits.

Use left arrow to move the cursor just before the s of sin and press down arrow to enter a numerical value for the lower limit.

Press the up arrow to move cursor in upper square.

Key in the numerical value of the upper limit.

Press [=].

Warning. To have meaningful result, make sure the angle unit used is conform to the problem you are trying to solve.

Hope it helps.

Configure the calculator to be in MathIO : [SHIFT][MODE][1:MathIO].

Press the Integral key, the one judt beloe the [ALPHA] key.

The template of the integral appears, with the cursor in larger rectangle. Enter the function the screen displays the integral, a small upper sqaure, and a small lower square. The left parenthesis of the function is already supplied by the calculator.

Press [ALPHA] X to enter the argument of the function.

Press the right parenthesis.

Remain the limits.

Use left arrow to move the cursor just before the s of sin and press down arrow to enter a numerical value for the lower limit.

Press the up arrow to move cursor in upper square.

Key in the numerical value of the upper limit.

Press [=].

Warning. To have meaningful result, make sure the angle unit used is conform to the problem you are trying to solve.

Hope it helps.

Nov 01, 2009 | Casio FX-300MS Calculator

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