I used a "Whiz Wheel" in 1964. After allowing my license to lapse, I used an unprogramable scientific calaculator in 1987. I was familiar with it, and the trig was easier, quicker, and more accurate than relearning a whizwheel. Memorised the formulae, and could work them out if I had forgotten.
It depends on how familiar you are with trig and scientific calculators. An arithmetical calculator won't do.