Tony,
tan 25 deg = 0.46631
log (tan 25 deg) = -.33133 = 9.66867 - 10.0
Also, be careful of log base 10 vs. log base e, e = 2.71828...
Gordon
At 20:05 97/06/24 +, you wrote:
My printed tables give the log tan of 25° as 9.668 673 Can I use my
Casio fx 85s Scientific pocket calculator to
On Tue, 24 Jun 1997, Tony Moss wrote:
As a dial maker and reluctant 'number cruncher' I use computer spreadsheets
for all my calculations but have had to rely on my old printed six-figure
tables for one remaining job - the log tan values in the sun's azimuth
calculation.
e.g. My printed
