introduction to touchdevelop

mathbasic arithmetic operations

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introduction to touchdevelop

numbers,+,*,…o use the arithmetic pad

to enter +, -, /, *o use the number pad to

enter numberso more in math.o floating point numbers

like your calculator

✿ double precision

introduction to touchdevelop

matho scientific calculator services

• trigonometry: sin, cos, acos, …

• calculus: pow, √, loge, log10,…

• constants: π(pi), g(ravity),…

• numerics: floor, ceil, round,…

• useful: random,…

✿ https://www.touchdevelop.com/help/api/200060/math

introduction to touchdevelop

user inputo use wall→ask number to get a number

from the user

var x := wall→ask number(“enter x”)x →post to wall

☀ you can also add arguments to the action

introduction to touchdevelop

exercisesouse a different action for each exercise

► “compute the square root, i.e. √(x), of x given by the user”

► “compute the surface of a rectangle with its width and height from the user”

► “compute the root of ax + b, given a and b from the user”

► “compute the surface of a circle given the radius from the user”