SICP

Hello /prog/
I am reading SICP, should i do all exercises of the book?
I can't wrap my head around the code.
I've even googled for solutions, but i have to write them down and follow/write each call with pencil.

Seriously, i wouldn't have problem with most of the algorithms given if i could use some other language.

Do i fail at maths?
help.

>>5


rigorous
     adj 1: rigidly accurate; allowing no deviation from a standard;
            "rigorous application of the law"; "a strict
            vegetarian" [syn: strict]
     2: demanding strict attention to rules and procedures;
        "rigorous discipline"; "tight security"; "stringent safety
        measures" [syn: stringent, tight]
     3: (of circumstances; especially weather) causing suffering;
        "brutal weather"; "northern winters can be cruel"; "a
        cruel world"; "a harsh climate; "a rigorous climate";
        "unkind winters" [syn: brutal, cruel, harsh, unkind]

???