There is no option to change the default (pseudo)unit of angle to something else than radian.
If you want a length to be in meter you write m, if it shoul be interpreted as feet you write ft.
The same applies to the pseudounits of "dimension" angle. If you want a quantity in degree, you have to write "deg" or "°".
If you want it in radian you either write "rad" or nothing at all, as rad=1.
If you are using the symbolics they don't know anything about units and will treat deg or ° as unknown variable. So you would have to define °:=pi/180 and/or deg:=pi/180 yourself.
Valery Ochkov wrote:
Werner Exinger wrote:
as rad=1.
Sorry, rad=1 m/m
... and m/m is ...?
The ratio of two lengths is a dimensionless number, in our case rad=1.
It doesn't matter if you measure in meter or feet or mixed length units.
Mathcad knows about that ;.)
An unit of specific enthalpy in not m^2/s^2 but J/kg
An unit of thermal conductivity is not J/(m K) but J*m/(m^2*K)
Etc (rad=m/m, for example)
We sometime do simplify units but it is not good for education!
And for industrial calculation too - rad+sr=2, rad+%=1.01 etc but must be an error message!
Units system in Mathcad is not quit absolute good 
Narasipur Suryanarayana wrote:
I am working on problems where all the angles are in degrees and the trigonometric functions should read them as such. It is a lot of work to make sure that all the angles are converted to radians before the algebraic expressions involving them are evaluated. Is there any way that a statement or preference can be added so that mathcad correctly evaluates the trigonometric functions with the arguments in degrees?
Either use the built-in unit conversion facility or redefine the trig function to work in degrees.
Stuart
