id summary reporter owner description type status priority milestone component version severity resolution keywords cc distribution status_field
2697 Calculate should use an appropriate number of significant figures for trigonometric functions greenfeld rwh "Calculate should use an appropriate number of significant figures for trigonometric functions. Right now it provides errors in the noise where it should provide a zero answer.
This potentially could confuse students if none of their other figures are that minuscule. Seen in Calculate-36 in OLPC 11.2.0 os13.
Examples seen on an XO-1.5 (using degrees; radians are similar):
* sin(180) = 1.22460*10^-16^
* cos(90) = 6.12303*10^-17^
* tan(90) = 1.63317*10^16^ {technically I believe this is undefined, but Google's calculator makes the same mistake for this one entry}. " enhancement new Unspecified by Maintainer Unspecified Calculate 0.92.x Minor walter lucyd OLPC New