formula

I am developing a CMD batch. I want to do some math in it. This formula: (x+1)100:y So in batch, x = %x%, and y = %y% . I know how to set the variables. Now, how can batch calculate this? (WINDOWS CMD) Do I need something extra? (I need this to be available to users of Windows XP to 7.) Kevin The set command supports some limited calculation. In your case, you want: set /a result=(100*x)/y Run set /? to see full documentation on what is supported. The /a switch does automatic variable substitution, so you can use x instead of %x% . @echo off set x=42 set y=5 set /a z = 100 * x / y echo %z% The

I'm tring to use neuralnet for prediction. Create some X: x <- cbind(seq(1, 50, 1), seq(51, 100, 1)) Create Y: y <- x[,1]*x[,2] Give them a names colnames(x) <- c('x1', 'x2') names(y) <- 'y' Make data.frame: dt <- data.frame(x, y) And now, I got error model <- neuralnet(y~., dt, hidden=10, threshold=0.01) error in terms.formula(formula) : '.' in formula and no 'data' argument For example, in lm(linear model) this is worked. As my comment states, this looks like a bug in the non-exported function neuralnet:::generate.initial.variables . As a work around, just build a long formula from the names

How do I create a formula that isn't made invalid when I delete a row. For example in cell F12 I have the formula: =F11+D12-E12 This basically says take the value from the cell above then add the value of the cell 2 to the left and subtract the value in the cell directly to the left. However, because I'm using actual cell addresses, as soon as I delete a row, all the rows below become invalid. How do i express the formula by relative position (ie = "1 above" + "2 to left" - "1 to left") Thanks. You can use either =OFFSET(F12,-1,0)+OFFSET(F12,0,-2)-OFFSET(F12,0,-1) , or =INDIRECT("F11",true)

I want to build something like this but using an android phone: http://www.youtube.com/watch?v=WOt9mb5QqRs I've already built an app that sends sensor information via socket (still looking for a good websocket implementation for android). I intend to use that information to interact with a web app, so for example i would be able to move an image based on the phone movement. The problem is that I tried to calculate distance based on the accelerometer data but the results are really bad. I wonder if anyone could help me with the correct equation, but first of all, is it possible to do this? Till

I'm looking for a math formula that on a graph plotting Y as a function of X, before a specified starting point (a value of X, or even better, X and Y coordinates) will have a certain slope, then after that it will draw an arc of a specified radius that will end when it reaches a second specified slope, and from the point on will be another straight line of that second slope. I'm am aware that because it's Y as a function of X, the slope parameters would need to be bigger than exactly -90 and smaller than exactly 90 degrees; i'm not worried about any misbehavior at (or beyond) those extremes.

I've got an simple Hibernate entity for which I use the @Formula annotion: @Id private Long id; private String name; @Formula("(select count(f.*) from foo f where f.id = id)") private long bar; When I try to load an entity with a native SQL Query: EM.createNativeQuery("SELECT f.*, count(something) as bar FROM foo f WHERE f.name = '...'", Entity.class) I get an NullPointerException: java.lang.NullPointerException at org.hibernate.loader.DefaultEntityAliases.intern(DefaultEntityAliases.java:193) at org.hibernate.loader.DefaultEntityAliases.getSuffixedPropertyAliases(DefaultEntityAliases.java:151

In Crystal Report using Visual Studio 2010, I am trying a to create a formula for the following scenario: x = any number (Fixed number of 8 digits, cant be less or greater) If Length of X is less than 8, pad the required amount of 0's in the front to make its length 8. Eg: X = 123 Result of Formula should be 00000123 X = 9 Result of Formula should be 00000009 Any help will be appreciated. Thanks in advance. ToText({table.field},"00000000") is more succinct. aMazing I got it Right("0000"&{MyFieldToPad},8) Works perfectly as I want it to. 来源： https://stackoverflow.com/questions/10989266/padding