HP 50G for Maths (My experiences)

[Valentin Albillo]

.
Hi,

Quote:I cannot think of any other calculator on the planet (outside 48/49/50) that allows entry so rapidly.

Well, I can think of one. The HP-71B allows entering a number of matrices (or 1-dimensional arrays), real or complex, by executing a single MAT INPUT statement (which can be assigned to a key for instant execution), which will then prompt you for the first element of the first matrix and you can then enter any number of elements (including just one or all of them) by simply keying them in separated by commas, like this:

MAT INPUT A
A(1,1)?    1,3,14,28,0.047,64,-27,33,0,1.23e38 [END LINE]

For extra flexibilty, you can enter several matrices and/or arrays at once by simply sequentially entering all their elements separated by commas, no need to key in any extra separators between elements of distinct matrices or arrays:

MAT INPUT A,B,M
A(1,1)?    1,3,14,28,0.047,64,-27,33,0,1.23e38,1,2,3,4,5,6,7,8,9,-23,-32,117 [END LINE]

And for ultimate convenience, the elements might be arbitrary expressions, including elements of matrices:

MAT INPUT A
A(1,1)?    1,3,14,28,0.047*SIN(X+J),64*REPT(CONJ(2+P,3-Q))),-27,33*B(I,J),0,1+C(6+I,7-J) [END LINE]

V.
.