java Programming Glossary: sin

Java Math.cos(Math.toRadians(<angle>)) returns weird values

http://stackoverflow.com/questions/13100144/java-math-cosmath-toradiansangle-returns-weird-values

I know I have to convert the angle to Radians before using Math.cos . But if I just do System.out.println Math.cos Math.toRadians.. Math.toRadians 90 It outputs 6.123233995736766E 17 Math.sin is working well. java math angle cos share improve this question.. cos share improve this question From trigonometry sin x ~ x for small values of x sin x cos x pi 2 Because pi 2 can't..

Rotate BufferedImage Inside JPanel

http://stackoverflow.com/questions/15779877/rotate-bufferedimage-inside-jpanel

present inside the square. I know myPicture is not blank since myPicture itself displays properly inside the JPanel when.. position after it's been rotated and two you're not disposing of the Graphics context when you're done with it not that I.. at g2d.drawImage image 0 0 this g2d.dispose Update using a JLabel import java.awt.BorderLayout import java.awt.Dimension..

Does java have built in libraries for audio _synthesis_?

http://stackoverflow.com/questions/2064066/does-java-have-built-in-libraries-for-audio-synthesis

Sun forum post has some interesting code for generating sin tones. Also given that the WAV file format is not overly complicated..

Draw a circle with a radius and points around the edge

http://stackoverflow.com/questions/2508704/draw-a-circle-with-a-radius-and-points-around-the-edge

seem to be able to program the circle. I am currently using a Ellipse2D method but that doesn't seem to work and doesn't.. circle from the center rather from a starting coordinate using a height and width. My current code is on a separate frame.. specified as a function of the angle 庛 x a r cos 庛 y b r sin 庛 Here increments of 2 8 are shown. Addendum As suggested in..

Android - SQlite Getting nearest locations (with latitude and longitude)

http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude

that SQLite needs a custom external function for the Haversine formula calculating distance on a sphere but I haven't found.. sqlite It's suggesting to make 4 new columns for cos and sin values of lat and lng but is there any other not so redundant.. double trueCourse Math.toRadians bearing double lat Math.asin Math.sin latA Math.cos angularDistance Math.cos latA Math.sin..

Rotate an image in java

http://stackoverflow.com/questions/4156518/rotate-an-image-in-java

DaImage.getHeight resize the frame java swing image processing bufferedimage affinetransform share improve this question.. share improve this question You need to be using trigonometry to determine the correct width height using transparency.. using trigonometry to determine the correct width height using transparency to prevent the black area and I think the Transform..

Fast transcendent / trigonometric functions for Java

http://stackoverflow.com/questions/523531/fast-transcendent-trigonometric-functions-for-java

to do a calculation several times faster without losing much precision. On my machine a multiplication takes 1.5ns.. my machine a multiplication takes 1.5ns and java.lang.Math.sin 46ns to 116ns . Unfortunately there is not yet a way to use.. tables. And it should be much faster than java.lang.Math.sin on your basic x86 system. Otherwise there would be no point..

free Java library for evaluating math expressions

http://stackoverflow.com/questions/7258538/free-java-library-for-evaluating-math-expressions

where the user can provide in a formula for example sin x pi 2 1 which I use in my Java app The formula provided by.. The formula provided by the user private String formula sin x pi 2 1 Evaluates the formula and computes the result by using.. x pi 2 1 Evaluates the formula and computes the result by using the given value for x public double calc double x Formula f..

FFT library in android Sdk

http://stackoverflow.com/questions/9272232/fft-library-in-android-sdk

to recompute when size of FFT changes. double cos double sin public FFT int n this.n n this.m int Math.log n Math.log 2 Make.. must be power of 2 precompute tables cos new double n 2 sin new double n 2 for int i 0 i n 2 i cos i Math.cos 2 Math.PI.. n 2 for int i 0 i n 2 i cos i Math.cos 2 Math.PI i n sin i Math.sin 2 Math.PI i n public void fft double x double y..