Contents
Who invented sine cosine and tangent?
Muhammad ibn Mūsā al-Khwārizmī
In the early 9th century AD, Muhammad ibn Mūsā al-Khwārizmī produced accurate sine and cosine tables, and the first table of tangents. He was also a pioneer in spherical trigonometry.
Where do sine cosine and tangent come from?
The word tangent comes from the Latin tangere, to touch. The word sine comes from the Latin sinus, bosom, because early translators mistook the Arabic word for chord and thought it was the Arabic word for bosom. The “co-” prefix in cosine and cotangent simply stands for co-angle, the complementary angle.
Where does the name sine come from?
The word “sine” (Latin “sinus”) comes from a Latin mistranslation by Robert of Chester of the Arabic jiba, which is a transliteration of the Sanskrit word for half the chord, jya-ardha.
What is sine short for?
SINE
| Acronym | Definition |
|---|---|
| SINE | Short Interspersed Nuclear Element |
| SINE | Structural Images of the North East (art and photograph collection; University of Newcastle Upon Tyne; UK) |
| SINE | Southwest Indiana Network for Education |
| SINE | Society for Innovation and Entrepreneurship (IIT Bombay, India) |
Who discovered the law of cosines?
Jamshīd al-Kāshī
In the 15th century, Jamshīd al-Kāshī, a Persian mathematician and astronomer, provided the first explicit statement of the law of cosines in a form suitable for triangulation. He provided accurate trigonometric tables and expressed the theorem in a form suitable for modern usage.
How to do advanced math calculation using BC?
The bc command line provide four special variables with specific meaning and behavior on the arithmetic expression to be evaluated. Defines how some operations use digits after the decimal point. Default value is 0 unless bc is used with the -l option, then default is 20. Defines the conversion base for input numbers. Default is to use base 10.
How is BC similar to the C programming language?
There are some similarities in the syntax to the C programming language. A standard math library is available by command line option. If requested, the math library is defined before processing any files. bc starts by processing code from all the files listed on the command line in the order listed.
What’s the default value for BC in math?
Default value is 0 unless bc is used with the -l option, then default is 20. Defines the conversion base for input numbers. Default is to use base 10. Defines the conversion base four output numbers.
Are there any bitwise operations in GNU bc?
They are available for use in conditional statements (such as within an if statement). Note, however, that there are still no equivalent bitwise or assignment operations. All functions available in GNU bc are inherited from POSIX. No further functions are provided as standard with the GNU distribution.